Ruger Standard

{{short description|Semi-automatic pistol}} {{pp|small=yes}} {{Infobox weapon | name = Ruger Standard | image = Ruger_Standard_Pistol_wood_grips.jpg | image_size = 300 | caption = Blued Ruger Standard model with wood grips | origin = United States | type = [[Semi-automatic pistol]] | is_ranged = yes | service = | used_by = | wars =  | designer = William B. Ruger | design_date = 1949 | manufacturer = Sturm, Ruger | production_date = 1949–present | number = | variants = * MK I Target * MK II * MK II Target * MK II Government Target * Competition model * MK III * MK III Target * 22/45 * MK IV | weight = | length = | part_length = * {{convert|4|in|cm|abbr=on}} * {{convert|4.75|in|cm|abbr=on}} * {{convert|5.25|in|cm|abbr=on}} * {{convert|5.5|in|cm|abbr=on}} * {{convert|6|in|cm|abbr=on}} * {{convert|6.875|in|cm|abbr=on}} * {{convert|10|in|cm|abbr=on}} | cartridge = [[.22 Long Rifle]] | caliber = | action = [[Blowback (firearms)|Blowback]] | rate = | velocity = | range = | max_range = | feed = 9- or 10-round [[box magazine]] | sights = Open [[iron sights]], both fixed and adjustable }} The '''Ruger Standard Model''' is a [[rimfire ammunition|rimfire]] [[semi-automatic pistol]] introduced in 1949 as the first product manufactured by [[Sturm, Ruger & Co.]], and was the founding member of a product line of [[.22 Long Rifle]] [[cartridge (firearms)|cartridge]] [[handgun]]s, including its later iterations: the MK II, MK III, and MK IV. It is marketed as an inexpensive [[.22 caliber]] rimfire intended for casual [[Shooting sports|sport]] and [[Bullseye (shooting competition)|target]] [[shooting]], and [[plinking]]. Designed by company founder [[William B. Ruger]], the Standard model and its variants are the most sold .22 caliber semi-automatic pistols ever produced.<ref name="gb">Quinn, Boge. [http://www.gunblast.com/Ruger_50th.htm "Ruger 50th Anniversary .22"] Gunblast Web site. Accessed January 8, 2009.</ref><ref name="dm">Metcalf, Dick. [http://hunting.about.com/od/guns/l/aast50rugersa.htm "50 years of Ruger Auto Pistols"] About.com Web site. Accessed January 13, 2009.</ref>

==Development== [[File:Ruger Pistol Design Patent Drawing.png|thumb|left|William B. Ruger's Standard Pistol 1951 Design Patent Drawing]] After [[World War II]], firearm designer and entrepreneur Bill Ruger acquired a pair of World War II [[Empire of Japan|Japanese]] [[Nambu pistol]]s from a returning [[US Marine]], which he successfully duplicated in his garage.<ref>Wilson, R. L. "Ruger & His Guns; A History Of The Man, The Company And Their Firearms." 1996. {{ISBN|0-7858-2103-1}}.</ref> Using the Nambu's silhouette and [[Bolt (firearm)|bolt system]], Ruger produced his first prototype, but lacked the [[venture capital]] necessary to fund its introduction. When his affluent friend [[Alexander McCormick Sturm|Alex Sturm]] was shown the 1949 [[prototype]] Ruger had created, he was impressed by its aesthetic and its slight resemblance to the German [[Luger P08 pistol]].

Realizing that prospective buyers would share his sentiment, Sturm invested $50,000 and the two teamed to form the company [[Sturm, Ruger & Co.]]<ref name="gb"/><ref name="dm"/> Ruger's new product was named the "Standard" model. Intended as a low-cost [[recreation]] and [[sport]]ing product for outdoor, [[hunting]] and firearms enthusiasts, Ruger employed a number of simple and innovative manufacturing techniques used in the production of the new pistol. These included using [[coil spring]]s made of [[piano wire]] in the action, instead of the flat springs most manufacturers were using at the time; also, the [[Receiver (firearms)|receivers]] were made from two stamped and welded sheet metal halves.

These practices worked well with a firearm which needed to handle only .22 rimfire pressures, and the cost savings it produced allowed Sturm and Ruger to undersell other manufacturers whose production relied on more expensive methods.<ref name="dm"/> Sturm, who had an interest in [[heraldry]], contributed the company's [[trademark]] "Red Eagle" [[coat of arms]] emblem. This emblem was featured as a medallion on the left [[Pistol grip|grip]] panel.<ref name="gb"/><ref name="dm"/> A favorable review published in the ''[[American Rifleman]]'' magazine penned by the notable firearms authority [[Major general (United States)|Major General]] [[Julian Hatcher|Julian S. Hatcher]], coupled with an advertisement printed in the same magazine, resulted in public interest.<ref name="gb"/> The suggested retail price for the new pistol was US$37.50, which was competitive at the time.<ref>[http://www.nazarian.no/wep.asp?id=348&group_id=1&country_id=11&lang=0 "Ruger MKI / MKII / MKIII"] Nazarian's gun recognition guide Web site. Accessed January 8, 2009.</ref>

Although Ruger received checks from would-be purchasers, the company did not cash any until the product actually shipped. In a few months the [[seed money]] was all spent, but by then the first 100 Standard pistols had been built and distributed to the initial purchasers.<ref name="dm"/>

The pistol was introduced in the fall of 1949 and became popular in the rimfire pistol market. After Alex Sturm died of [[viral hepatitis]] in November 1951,<ref name="dm"/> Ruger ordered the background of the eagle emblem changed from red to black on future production models of the pistol in Sturm's memory.<ref name="gb"/><ref name="dm"/>

The Standard model remained in continuous production with minor improvements for the next 33 years. The new corporation expanded the basic Standard [[archetype]] into a product line of pistols over time by the introduction of a number of variant models. These took the form of offering additional barrel lengths and configurations, creating versions optimized for target shooting, and adding the finish option of [[stainless steel]]. The line was also refined with three mechanical "Mark" series upgrades, the [[Ruger Mark II|MkII]], [[Ruger Mark III|MkIII]] and [[Ruger MK IV|MkIV]], in 1982, 2004 and 2016.<ref name="dm"/> The MkII added a slide stop that held the slide open on the last round, and also was available in [[stainless steel]]. The MKII was available in a number of barrel lengths; {{convert|4.75|in|cm|abbr=on|adj=on}} and {{convert|6|in|cm|abbr=on|adj=on}} lightweight barrels; {{convert|4|in|cm|abbr=on|adj=on}}, {{convert|5.5|in|cm|abbr=on|adj=on}}, {{convert|6.875|in|cm|abbr=on|adj=on}} and {{convert|10|in|cm|abbr=on|adj=on}} bull barrels, and {{convert|5.25|in|cm|abbr=on|adj=on}} and {{convert|6.875|in|cm|abbr=on|adj=on}} heavy tapered barrels. All guns with bull or heavy tapered barrels are Target models, and are equipped with target sights consisting of an adjustable rear sight and a taller, wider front sight, with an aggressive undercut to [[Iron sight#Glare reduction|reduce glare]]. In 1999, Ruger offered 18 different variants. The Standard became the most sold automatic .22 handgun, with over 2 million pistols sold.<ref name="gb"/><ref name="dm"/>

===Criminal use=== The Ruger Standard has been used in several notable crimes: * Patrick Sherril used a Ruger MK II among other firearms in the [[Edmond post office shooting]] in 1986 and killed 14 people and injured 6 more.<ref>{{cite book|last=Justus|first=Dale|title=Fifteen Minutes of Terror: Massacre at the Edmond Oklahoma Post Office|date=8 August 2011|publisher=iUniverse, Incorporated|isbn=978-1462041985|page=34|url=https://books.google.com/books?id=vtC8pSiNVV4C&q=Paul+Michael+%22Mike%22+Rockne&pg=PA34}}</ref><ref>{{cite web |last1=Ellis |first1=Randy |title=Authorities Piece Together Tragedy Gunman at Edmond Post Office Knew Where to Shoot People |url=https://oklahoman.com/article/2157408/authorities-piece-together-tragedy-gunman-at-edmond-post-office-knew-where-to-shoot-people/amp |website=The Oklahoman |access-date=22 February 2020 |date=22 August 1986}}</ref> * Michael Carneal used a Ruger Mark II in the [[1997 Heath High School shooting]] and killed three people and injured five more.<ref>{{Cite web|last=Adams|first=Lauren|date=2014-11-20|title=Survivors remember deadly Ky. school shooting 17 years later|url=https://www.wlky.com/article/survivors-remember-deadly-ky-school-shooting-17-years-later/3753900|access-date=2021-01-28|website=WLKY|language=en}}</ref> * Kip Kinkel used a Ruger Mark II, among other firearms, in the [[Thurston High School shooting]] in 1998 and killed 4 people and injured 25 more.<ref>{{cite news |first = Nicole |last=Fancher |title=8 years later: Thurston and Kinkel revisited |date=October 2, 2006 |access-date=November 13, 2013 |url=http://dailyemerald.com/2006/10/02/8-years-later-thurston-and-kinkel-revisited/ |newspaper=[[Oregon Daily Emerald]]}}</ref> * [[Marcus Wesson]] used a Ruger MK II to murder his 9 children in 2004.<ref>{{Cite web |last=Bartlette |first=DeLani R. |date=2021-06-07 |title=Marcus Wesson: The Vampire King of Fresno |url=https://delanirbartlette.medium.com/marcus-wesson-the-vampire-king-of-fresno-630b122e59e5 |access-date=2023-02-17 |website=Medium |language=en}}</ref> * [[Jeff Weise]] used a Ruger Mk II, among other firearms, in the [[2005 Red Lake shootings]] and killed 9 people and injured 5 more,<ref>{{Cite web |date=2013-03-18 |title=MPR: Shooting fuels debate over safety of Prozac for teens |url=http://news.minnesota.publicradio.org/features/2005/03/25_helmsm_prozacfolo/ |access-date=2023-02-17 |archive-url=https://web.archive.org/web/20130318022256/http://news.minnesota.publicradio.org/features/2005/03/25_helmsm_prozacfolo/ |archive-date=2013-03-18 }}</ref> which revived the public discussion about the use of Prozac for children and adolescents. The Food and Drug Administration had published a warning about it in October 2004 as a factor in increased suicides and violence among youths.<ref>{{Cite news |last1=Davey |first1=Monica |last2=Harris |first2=Gardiner |date=2005-03-26 |title=Family Wonders if Prozac Prompted School Shootings |language=en-US |work=The New York Times |url=https://www.nytimes.com/2005/03/26/us/family-wonders-if-prozac-prompted-school-shootings.html |access-date=2023-02-17 |issn=0362-4331}}</ref> * T.J. Lane used a Ruger MK III in the [[2012 Chardon High School shooting]] that killed three people and injured three others.<ref>{{cite web|last=Horton|first=John|title=T.J. Lane, accused Chardon High School gunman, appears in Geauga County Juvenile Court|url=http://www.cleveland.com/chardon-shooting/index.ssf/2012/03/tj_lane_enters_plea_in_chardon.html| work= [[The Plain Dealer]]|date=March 7, 2012|publisher=Cleveland Live|access-date=March 7, 2012}}</ref><ref>{{cite web|last=Caniglia|first=John|title=T.J. Lane, accused in Ohio school shooting, described as quiet, smart, no outcast|url=http://blog.cleveland.com/metro/2012/03/lake_academy_students_recall_q.html|work=The Plain Dealer|date=March 6, 2012|publisher=Cleveland Live LLC|access-date=March 6, 2012}}</ref> * Gabriel Ross Parker used a Ruger MK II in the [[2018 Marshall County High School shooting]], killing two people and injuring 14 more.<ref>{{Cite web|url=https://www.courier-journal.com/story/news/2020/04/28/gabe-parker-marshall-county-high-school-shooter-pleads-guilty/3038914001/|title=Student pleads guilty to murder in Marshall County High School shooting that killed 2|date=April 28, 2020|access-date=January 14, 2023}}</ref> * A 13-year old used a Ruger Standard variant (imprecisely identified—reported as "Ruger MK") along with another firearm in the [[Belgrade school shooting]] in 2023, killing ten people and injuring six.<ref>{{Cite web |date=4 May 2023 |title=Ima li dece u streljani – kada maloletnik može da proba gađanje vatrenim oružjem |trans-title=Are there children in the shooting range – when can a minor try shooting a firearm |url=https://www.rts.rs/lat/vesti/drustvo/5185382/oruzje-tragedija-ceska-zbrojevka-sadov-2.html |access-date=4 May 2023 |website=[[Radio Television of Serbia]]}}</ref><ref name=":7">{{Cite web |last=Picheta |first=Rob |date=3 May 2023 |title=A school shooting has rocked Serbia. Here's what we know |url=https://www.cnn.com/2023/05/03/europe/serbia-school-shooting-what-we-know-intl/index.html |access-date=3 May 2023 |website=CNN |language=en |archive-date=3 May 2023 |archive-url=https://web.archive.org/web/20230503185251/https://www.cnn.com/2023/05/03/europe/serbia-school-shooting-what-we-know-intl/index.html |url-status=live }}</ref><ref name="230505n1-1">{{Cite web |date=5 May 2023 |title=Završeno saslušanje oca dečaka koji je pucao školi na Vračaru |url=https://n1info.rs/vesti/zavrseno-saslusanje-oca-decaka-koji-je-pucao/ |access-date=5 May 2023 |website=N1 |language=sr-RS}}</ref>

==Features== ===Standard (1949-1982)=== [[Image:Ruger standard wiki.png|thumb|Ruger Standard pistol, with aftermarket adjustable sights, made in 1963]] The Standard model is an atypical design, lacking the [[Pistol slide|slide]] found on conventional pistols, instead sporting a cylindrical [[Bolt (firearm)|bolt]] which cycles inside a tubular [[Receiver (firearms)|receiver]] in a manner more characteristic of a rimfire rifle. The bolt of the pistol features protruding "ears" at its rear which are grasped and pulled rearward to feed the initial round and cock the action. Using the basic [[Blowback (arms)|blowback]] form of [[firearm action|operation]], the Standard model originally came with a [[Bluing (steel)|blued]] [[carbon steel]] finish and was equipped with a {{convert|4.75|in|cm|adj=on}} tapered barrel.

The [[Magazine (firearms)|magazine]] held 9 rounds of .22 Long Rifle [[ammunition]] and was held in place by a catch on the bottom of the grip frame. Standard models came with [[Iron sight#Open sights|Patridge style]] [[Iron sight#Fixed iron sights|fixed iron open sights]] with the rear sight securely mounted in a [[Dovetail joint|dovetail]]. The grip panels were hard black [[Gunsmith#Checkerer|checkered]] [[Nitrile rubber|Butaprene]] [[synthetic rubber]], with pre-1950 pistols featuring the "Red Eagle" trademark as originally designed by [[Alexander McCormick Sturm|Alex Sturm]]. The [[Safety (firearms)#Manual safety|manual safety]] on the Standard model could be engaged only when the pistol was cocked, and the bolt could be locked open by activating the safety with the bolt held back.<ref name="dm"/>

The bolt was left "in the white" with the unfinished steel providing a visual contrast with the blued receiver.<ref name="gb"/> In 1954 a new model with a barrel length of 6 inches was added to the Standard lineup.<ref name="dm"/> In 1971, one of the few engineering changes ever made to the Standard model took place when the original 22-year-old receiver [[Die (manufacturing)#Die forming|forming dies]] wore out.<ref name="dm"/> As a precursor to changes to come with the 1982 introduction of the MK II series, the slot for the magazine follower extension on the grip frame was moved from the right to the left side.

Designated the "A 100" frame modification, this alteration facilitated the eventual improvement of the Standard pistol by the addition of a bolt hold open device as part of the eventual MK II upgrade.<ref name="dm"/> The pistol grip panels and magazines from older Standard models can not be used on post-1971 pistols due to this change, but the later magazines can still be used on pre-1971 guns by moving the magazine follower button to the opposite side.<ref name="dm"/> As the Standard model reached the end of its [[Product lifecycle (marketing)|product lifecycle]] in 1981, a [[Limited-run manufacturing|special edition run]] of 5000 4.75-inch pistols built of stainless steel were manufactured. These pistols were shipped in special wooden cases and featured an engraving of Bill Ruger's [[signature]].<ref name="dm"/>

===MK I Target (1950–1982)=== [[File:Ruger Mk1 Target.jpg|alt=Ruger Mk Target|thumb|A Copy of the Ruger MK I Target]] Introduced in 1950, the MK I Target model was basically the same as the Standard pistol, except that it boasted a {{convert|6.875|in|cm|adj=on}} barrel, improved [[Accurizing#Trigger|target style trigger]], a "Micro" [[Iron sight#Adjustable iron sights|adjustable rear sight]], and a front sight blade undercut to reduce [[Iron sight#Glare reduction|glare]].<ref name="dm"/> In 1952, a {{convert|5.25|in|cm|adj=on}} barreled version of the MK I Target was added to the lineup, but manufactured only through 1957, making it a [[collectible]] rarity today.<ref name="dm"/> A {{convert|5.5|in|cm|adj=on}} heavy bull barreled version of the MK I Target became available in 1963, eventually becoming the most popular length for Ruger Target MK pistols.<ref name="dm"/> Like their Standard model brethren, target models underwent the A 100 grip frame redesign in 1971.<ref name="dm"/>

==MK II== {{About|the semi-automatic rimfire pistol|the bolt-action rifle made by the same company|Ruger M77 Mark II|section=yes}} {{Infobox weapon | name = Ruger MK II | image = File:Ruger Mark II Target 22 LR.jpg | caption = Ruger Mark II Target | origin = United States | type = [[Semi-automatic pistol]] | is_ranged = yes | service = | used_by = | wars =  | designer = | design_date = | manufacturer = [[Sturm, Ruger|Sturm, Ruger & Co.]] | production_date = 1982—2005 | number = 3,000,000+ | variants =  | weight = 46 oz. (w/{{frac|6|7|8}} in bull barrel) | length = 11 1/8 in (w/{{frac|6|7|8}} in bull barrel) | part_length = | crew =  | cartridge = | caliber = | action = | rate = | velocity = | range = | max_range = | feed = }}

[[File:Ruger 22 gun.jpg|thumb|Ruger Mark II with 5.5 barrel in Stainless made in 1991.]] The MK II ("Mark Two") was made from 1982 to 2005. It replaced the ''Standard'', Ruger's first model, made from 1949 to 1982, and the ''MK I Target'', made from 1951 to 1982. MK II variations include the ''Target'' models, which have heavier barrels and adjustable sights, and the ''22/45'' models, which have a [[polymer]] frame with a grip-angle that matches the [[M1911 pistol|Colt 1911]] rather than the [[steel]] frame's [[Luger P08 pistol|Luger P08]]–like layout. Three barrel types were available. Taper barrels were available in {{frac|4|3|4}}″,{{frac|5|1|4}}″, 6″, and {{frac|6|7|8}}″ lengths, and could be equipped with fixed sights in any length or adjustable sights on 6″ and {{frac|6|7|8}}″ length barrels. Bull barrels were available on the Mark II in {{frac|5|1|2}}″, {{frac|6|7|8}}″, and 10″ lengths and all had adjustable sights. The slab-sided target models were available with {{frac|5|1|2}}″ and {{frac|6|7|8}}″ barrels and had adjustable sights. All Ruger Mark II pistols were available in either a blued finish or stainless steel except for the slab side Target Models, which only came in stainless. The MK II was removed from production in 2004, when it was replaced by the [[Ruger MK III|MK III]]. All Ruger [[Rimfire ammunition|rimfire]] pistols are chambered in [[.22 Long Rifle]] only.

===Variants=== [[File:AWCTMamphibianS-black.jpg|thumb|left|Title II AWC TM-Amphibian "S" integrally-suppressed variant used by U.S. Navy SEALs]] [[File:RugerMkIICompetitonTarget678-black.jpg|thumb|Ruger Mark II Stainless Slab side Competition Target Model .22 LR pistol with a [[Volquartsen Firearms|Volquartsen]] profiled slab side V-Comp [[Muzzle brake|compensator]], [[reflex sight]] mounted on a Volquartsen [[Weaver rail mount|Weaver-style rail]], {{frac|6|7|8}} in precision-crowned barrel, and checkered thumb-rest target grips]]

Some special variants that command higher prices are the Government Target Model, a model that was used for pistol training and competition by the United States Army,{{Citation needed|date=July 2012}} and the Red Eagle models, which were made from 1949 to the year of company co-founder Sturm's death, in 1951. The Red Eagle models had the Ruger logo in red on a silver background. Since then, the Ruger logo on the grip panels has been either black on silver or silver on black, with the exception of a special 50th Anniversary model that had a silver eagle on a red background. The top-of-the-line Government Target Model comes with a {{convert|6.875|in|cm|abbr=on|adj=on}} bull barrel and wood thumb-rest target grips. The competition Target Model is identical to the Government Target Model with the additional feature of flats cut along each side of the barrel to reduce weight. Sometime during the span of Mark II production, Ruger started drilling its receivers for and providing a low profile scope base, and 1″ scope rings.

The [[Suppressor|suppressed]] Mk II was used by [[United States Navy SEALs]].<ref>{{cite journal|journal=Jane's International Defence Review|year=1996|issue=3|publisher=Janes Information Group|title=Jane's International Defence Review |quote=SEALs may be equipped with a wide variety of small arms, ranging from the 0.22-caliber (LR) Ruger Mk 2 through...}}</ref> This variant is considerably quieter than a standard Mk II and accurate to {{convert|70|m|ft|abbr=on}}.<ref>{{cite book |title=The Directory of the World's Weapons |year=1996 |publisher=Blitz Editions |location=p119 |isbn=1-85605-348-2 }}</ref> A tactical restraint cutter was also available for hostage rescue situations.<ref>1987 American survival magazine</ref>

The AWC TM-Amphibian "S" is an integrally-suppressed variant of the Ruger Mk II Target .22 LR pistol. The sound suppressor uses a primary baffle of 303 [[stainless steel]] and a secondary baffle of 6061-T6 aluminum alloy. The AWC weapon manual states, "This suppressor is 'Amphibious' and can be fired with water. A couple of tablespoons of water can be poured into the suppressor for extra quiet operation."<ref>L.W. McWilliams. ''TM-Amphibian 'S' Manual''. AWC Systems Technology, 2001. p. 3.</ref> It uses both standard and high velocity ammunition reliably and is finished in U.S. Navy spec stainless-matte finish. The pistol has an overall length of {{convert|13.25|in|cm|abbr=on}}, a suppressor length of {{convert|7|in|cm|abbr=on}}, a diameter of {{convert|1|in|cm|abbr=on}} and weighs {{convert|41|oz|g|abbr=on}}.<ref>''[http://www.awcsystech.com/awccatalog.pdf 2009 AWC Product Guide]'', pp. 5–6.</ref> This weapon is classified in the U.S. as a [[Title II weapon]] and requires a $200 transfer or manufacture tax in addition to registration with the ATF.

==MK III== {{More citations needed section|date=May 2011}} {{Infobox weapon | name = Ruger MK III | image = Ruger mkiii bull.jpg | image_size = 300 | caption = The Ruger MK III Target with 5{{frac|1|2}}" bull barrel | origin = United States | type = [[Semi-automatic pistol]] | is_ranged = Yes | service = | used_by = | wars =  | designer = | design_date = | manufacturer = [[Ruger|Sturm, Ruger & Co.]] | production_date = 2004—2016 | number = | variants = See ''[[#MKIII-models|Models]]'' | weight = {{convert|31|-|45|oz|abbr=on}}<ref name=Rug>{{cite web|title=Ruger Mark III|url=http://www.ruger.com/products/markIIIStandard/models.html|publisher=Sturm, Ruger & Co., Inc.|access-date=8 December 2012}}</ref> | length = {{convert|9|-|11.12|in|abbr=on}}<ref name=Rug/> | part_length = {{convert|4.75|-|6.88|in|abbr=on}}<ref name=Rug/> | crew =  | cartridge = [[.22 Long Rifle]] | caliber = | action = | rate = | barrels = 1:16" Right hand twist<ref name=Rug/> | velocity = | range = | max_range = | feed = }}

The MK III ("Mark Three") is the third-generation successor to the original Ruger Standard. The MK III replaced the MK II in 2004, and production of the MK III ended on December 8, 2016; it was succeeded by the MK IV.

===Changes from the Mark II=== * Addition of a visible loaded chamber indicator on the left side. * Magazine release moved, from bottom of the grip to behind trigger guard. * All Mark III pistols with adjustable sights are drilled and tapped for a Weaver-style scope base which ships with the pistol.<ref>The Ruger manual says "NOTE C—Scope mount bases and rings listed will fit all MARK III and 22/45 MARK III pistols. Only the MARK III Target models are drilled and tapped at the factory. The MARK III Standard models must be drilled and tapped by your local gunsmith. (Drilling and tapping instructions available upon request.)" As of March 2011 it appears as though Ruger has started drilling and tapping the Mark III Standard model.</ref> * A new [[magazine disconnect]] prevents the pistol from being fired with the magazine removed from the pistol. * An internal safety lock has been added. Using a key, the safety can be locked in the "safe" position. * Shorter tapered bolt ears. * A smoothly contoured ejection port profile.

===Models=== {{anchor|MKIII-models}} Two types of MK III pistols were produced.

====Mark III==== [[File:Flickr - ~Steve Z~ - PICT0020.jpg|thumb|Stainless steel Ruger Mark III with magazine]]

The first lineup is simply known as ''Mark III''. The pistol's barrel is made from steel bar and is threaded into the receiver which is made from steel tube. The barrel is not removable without machining, though. The layout is similar to the [[Luger P08]], although the operating mechanism was originally copied from the [[Nambu pistol]].

* The high-end model is known as the ''Hunter''. This pistol features a [[stainless steel]] frame and comes with either a 4.5-inch, 5.5-inch (a distributor exclusive), or a 6.875-inch [[Fluting (firearms)|fluted]] bull barrel, fiber-optic front sight, adjustable, V-notch rear sights, and half-checkered [[cocobolo]] wood grip. It features multiple safety mechanisms, and includes a visible loaded chamber indicator (The first ever included in a .22 rimfire pistol){{citation needed|date=April 2018}} as well as internal and external keyed locks provided. * The next pistol in the lineup is named ''Competition''. It too has a stainless steel frame and 6.875-inch slab sided bull barrel, and adjustable rear sights; the pistol also has the cocobolo grip with thumb rest. * ''Target'' is the next Mark III. This pistol has a stainless or blued finish, a 5.5" bull barrel, adjustable rear sights, and black plastic grips on the blued finish and Cocobolo grips on the stainless finish. * The ''bull barrel'' pistol comes in stainless steel or blued finish. It has a heavier barrel to help keep the barrel from overheating and to minimize recoil. It has a 5.5-inch barrel and adjustable rear sights. * Finally, the ''Standard'' Mark III has a tapered barrel, black plastic handgrips and a blued finish. It comes with either a 6-inch or 4.75-inch barrel. It has fixed sights.

{| class="wikitable" align="center" |+Ruger Mark III Lineup |- align="center valign="bottom" ! rowspan="2" | ! rowspan="2" | Catalog number ! rowspan="2" | Model ! colspan="2" | Finish ! colspan="2" | Sight ! colspan="2" | Length ! rowspan="2" | Approx. weight |- align="center valign="bottom" ! [[Bluing (steel)|Blued]] ! [[stainless steel|Stainless]] ! Rear ! Front ! Barrel ! Overall |- align="center" | rowspan="2" | Standard | align="left" | MKIII4 | Standard | * | | Fixed | Fixed | 4{{frac|3|4}}" | 9" | 35 oz |- align="center" | align="left" | MKIII6 | Standard | * | | Fixed | Fixed | 6" | 10{{frac|3|4}}" | 37 oz |- align="center" | rowspan="5" | Target | align="left" | MKIII512 | Bull Bbl. | * | | Adjustable | Fixed | 5{{frac|1|2}}" | 9{{frac|3|4}}" | 42 oz |- align="center" | align="left" | KMKIII512 | Bull Bbl. | | * | Adjustable | Fixed | 5{{frac|1|2}}" | 9{{frac|3|4}}" | 42 oz |- align="center" | align="left" | KMKIII678GC | Competition | | * | Adjustable | Fixed | 6{{frac|7|8}}" | 11{{frac|1|8}}" | 45 oz |- align="center" | align="left" | KMKIII678H | Hunter | | * | Adjustable | HiViz fiber optic | 6{{frac|7|8}}" | 11{{frac|1|8}}" | 41 oz |- align="center" | align="left" | KMKIII45H | Hunter | | * | Adjustable | HiViz fiber optic | 4{{frac|1|2}}" | 8{{frac|3|4}}" | 38 oz |}

====Mark III 22/45==== [[File:Ruger MK III.jpg|thumb|right|Mark III 22/45 with 5.5" bull barrel]] [[File:Ruger 2245 Lite.jpg|thumb|right|Mark III 22/45 Lite]] [[File:Ruger-2245-Lite.jpg|thumb|Mark III 22/45 Lite custom with a holosight and barrel compensator]] The second lineup is named ''Mark III 22/45''. These pistols have a [[polymer]] frame, and the steel barrel is installed nearly permanently into a tubular steel receiver. The grip angle emulates that of a [[M1911]].

* The current high-end model, the Mk III 22/45 ''Lite'', was introduced at the 2012 SHOT Show. The main features include a light-weight aluminum upper receiver, material reduction on the upper receiver for enhanced appearance and further weight savings, a steel barrel that has been threaded {{frac|1|2}}"-28 for a compensator or [[suppressor]], and user replaceable grips. Finally, the receiver of the ''Lite'' model is drilled and tapped for a Weaver rail section included in the packaging. * The previous high-end model is known as the ''Hunter''. This pistol features a stainless steel 4.5-inch or 6.875-inch fluted bull barrel, HiViz fiber optic front sight, and adjustable rear sights. This model was discontinued for 2012. * The ''Target'' pistol comes in a few different variations. It has a heavier barrel to limit overheating, reduce recoil, and increase accuracy. ** Stainless steel 5.5-inch barrel and adjustable rear sights (Discontinued in 2012). ** Blued finish with 5.5-inch barrel and adjustable rear sights. ** Blued finish with 4-inch barrel and adjustable rear sights. ** Blued finish with 5.5-inch barrel, fixed rear sights, and replaceable Checkered [[Cocobolo]] grips. ** Several models previously sold as ''Bull Barrel'' and ''Slab Side'' models had their names changed or were entirely discontinued when Ruger changed their catalog to reflect the ''Target'' lineup. * The ''Threaded Barrel'' models are very similar in configuration to the ''Target'' models, but with a threaded barrel for the addition of a compensator or suppressor. These models also feature user replaceable grips and the option of either adjustable target sights or Picatinny rails. * ''Distributor Exclusive'' models are specially made versions of the Mk III 22/45 released through certain distributors. For the 2012 lineup, these models include: ** A ''Target'' model with a "Water Dog" Brown Digital Camo lower receiver. ** A ''Target'' model with a fluted barrel and adjustable rear sights. ** A ''Target'' model with a fluted barrel and adjustable fiber optic rear sights.

{| class="wikitable" align="center" |+Ruger Mark III 22/45 lineup (as of June 2012) |- align="center valign="bottom" ! rowspan="2" | Catalog Number ! rowspan="2" | Model ! colspan="3" | Finish ! colspan="2" | Sight ! colspan="2" | Length ! rowspan="2" | Approx. weight |- align="center valign="bottom" ! Blued ! [[stainless steel|Stainless]] ! [[Aluminum]] ! Rear ! Front ! Barrel ! Overall |- align="center" | align="left" | P45MK3ALRP | Lite | | | * | Adjustable | Fixed | 4{{frac|1|2}}" | 8{{frac|1|2}}" | 22 oz |- align="center" | align="left" | P4MKIII | Target | * | | | Adjustable | Fixed | 4" | 8" | 31 oz |- align="center" | align="left" | P512MKIIIRP | Target | * | | | Fixed | Fixed | 5{{frac|1|2}}" | 9{{frac|1|2}}" | 33 oz |- align="center" | align="left" | P512MKIII | Target | * | Discont. | | Adjustable | Fixed | 5{{frac|1|2}}" | 9{{frac|1|2}}" | 35 oz |- align="center" | align="left" | P45GMK3RP | Threaded | * | | | Fixed | Fixed | 4{{frac|1|2}}" | 8{{frac|1|2}}" | 32 oz |- align="center" | align="left" | P45GMK3PRRP | Threaded | * | | | Picatinny rail | None | 4{{frac|1|2}}" | 8{{frac|1|2}}" | 32 oz |- align="center" | align="left" | KP512MKIII | Bull barrel | | * | | Adjustable | Fixed | 5{{frac|1|2}}" | 9{{frac|1|2}}" | 35 oz |- align="center" | align="left" | KP678HMKIII | Hunter | | * | | Adjustable | HiViz fiber optic | 6{{frac|7|8}}" | 10{{frac|7|8}}" | 34 oz |}

==MK IV== {{Infobox weapon |name= Ruger MK IV |image=File:Ruger MK IV.jpg |caption= |origin= United States |type= [[Semi-automatic pistol]]  |is_ranged=yes  |service= |used_by= |wars=  |designer= |design_date= |manufacturer= [[Ruger|Sturm, Ruger & Co.]] |production_date= 2016–present |number= |variants= See ''[[#MKIV-models|Models]]''  |weight= {{convert|25.0|-|53.5|oz|abbr=on}} |length= {{convert|8.4|-|14.0|in|abbr=on}} |part_length={{convert|4.4|-|10.0|in|abbr=on}} |crew=  |cartridge= |caliber= |action= |rate= |barrels= 1:16" Right hand twist<ref name=RugIV>{{cite web|title=Ruger Mark IV|url=http://www.ruger.com/products/markIV/overview.html|publisher=Sturm, Ruger & Co., Inc.|access-date=14 December 2016}}</ref> |velocity= |range= |max_range= |feed= }}

The MK IV ("Mark Four") is the fourth-generation successor to the original Ruger Standard. Introduced in 2016, the MK IV succeeded the MK III.

=== Changes from the Mark III === The most significant feature of the Mk IV redesign is a hinged connection between the upper receiver and the grip frame. This design enables the user to disassemble the firearm with a significantly simplified process compared to prior models.<ref name="AmRif">{{cite web|title=Ruger Introduces One-Button Takedown Mark IV Pistol|url=https://www.americanrifleman.org/articles/2016/9/22/ruger-introduces-one-button-takedown-mark-iv-pistol/|magazine= American Rifleman |date= 22 September 2016|access-date= 14 December 2016}}</ref>

Other design changes include: a redesigned [[trigger group]], a redesigned bolt stop, an ambidextrous thumb safety, and a "drop free" magazine release mechanism.<ref name=AmRif/>

===Safety recall=== In June 2017, Ruger issued a safety [[Product recall|recall]] on MK IVs for a defective trigger and [[Safety (firearms)|safety mechanism]]. If the safety were midway between the "safe" and "fire" positions when the trigger was pulled, the gun could discharge when the safety was moved to the "fire" position. MK IVs with [[Serial code|serial numbers]] beginning with "401" (2017 models) or "WBR" (2016 models) were recalled.<ref>{{Cite news|url=http://www.journalnow.com/business/business_news/local/ruger-orders-recall-on-all-mark-iv-pistols/article_348e104f-a63b-5a5f-919f-b712c63a3e67.html|title=Ruger orders recall on all Mark IV pistols|last=Journal|first=Richard Craver Winston-Salem|work=Winston-Salem Journal|access-date=2018-05-04|language=en}}</ref><ref>{{Cite web|url=https://www.shootingillustrated.com/articles/2017/6/8/ruger-recalls-mark-iv-rimfire-pistols/|title=Ruger Recalls Mark IV Rimfire Pistols|website=www.shootingillustrated.com|language=en|access-date=2018-05-04}}</ref>

=== Models === {{anchor|MKIV-models}} {{col-start|width=50%}} {{col-break}} * Standard * Target * Hunter * Competition * Tactical * 22/45 * 22/45 Lite * 22/45 Tactical {{col-break}} [[File:Ruger MK IV breakdown.jpg|thumb|MK IV partially disassembled; note hinge between receiver and grip frame]] {{col-end}}

{| class="wikitable sortable" align="center" |+Ruger Mark IV lineup (as of October 2020) |- align="center valign="bottom" ! rowspan="2" | Catalog<br>Number ! rowspan="2" | Model ! colspan="2" | Finish ! colspan="2" | Sight ! colspan="2" | Length ! rowspan="2" | Approx.<br>weight ! rowspan="2" class=unsortable| Notes ! rowspan="2" class=unsortable| Ref. |- align="center valign="bottom" ! Barrel ! Grip ! Rear ! Front ! Barrel ! Overall |- align="center" | align="left" | 40101 | Target | Blued | Aluminum | Adjustable | Fixed | 5.50" | 9.75" | 35.6 oz | | <ref>{{Cite web|url=https://ruger.com/products/markIVTarget/specSheets/40101.html|title = Ruger® Mark IV™ Target Rimfire Pistol Model 40101}}</ref> |- align="center" | align="left" | 40103 | Target | Stainless | Stainless | Adjustable | Fixed | 5.50" | 9.75" | 42.8 oz | | <ref>{{Cite web|url=https://ruger.com/products/markIVTarget/specSheets/40103.html|title = Ruger® Mark IV™ Target Rimfire Pistol Model 40103}}</ref> |- align="center" | align="left" | 40104 | Standard | Blued | Aluminum | Fixed | Fixed | 4.75" | 9.00" | 28.2 oz | | <ref>{{Cite web|title=Ruger® Mark IV™ Standard Rimfire Pistol Model 40104|url=https://ruger.com/products/markIVStandard/specSheets/40104.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40105 | Standard | Blued | Aluminum | Fixed | Fixed | 6.00" | 10.25" | 30.1 oz | | <ref>{{Cite web|title=Ruger® Mark IV™ Standard Rimfire Pistol Model 40105|url=https://ruger.com/products/markIVStandard/specSheets/40105.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40107 | 22/45 | Blued | Polymer | Adjustable | Fixed | 5.50" | 9.75" | 34.4 oz | | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Rimfire Pistol Model 40107|url=https://ruger.com/products/markIV2245/specSheets/40107.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40112 | Competition | Stainless | Stainless | Adjustable | Fixed | 6.88" | 11.12" | 45.8 oz | | <ref>{{Cite web|title=Ruger® Mark IV™ Competition Rimfire Pistol Model 40112|url=https://ruger.com/products/markIVCompetition/specSheets/40112.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40118 | Hunter | Stainless | Stainless | Adjustable | Fiber optic | 6.88" | 11.12" | 44.0 oz | | <ref>{{Cite web|title=Ruger® Mark IV™ Hunter Rimfire Pistol Model 40118|url=https://ruger.com/products/markIVHunter/specSheets/40118.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40126 | Target | Stainless | Stainless | Adjustable | Fixed | 5.50" | 9.75" | 42.8 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ Target Rimfire Pistol Model 40126|url=https://ruger.com/products/markIVTarget/specSheets/40126.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40149 | 22/45 Tactical | Blued | Polymer | Adjustable | Fixed | 4.40" | 8.50" | 33.3 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Tactical Rimfire Pistol Model 40149|url=https://ruger.com/products/markIV2245Tactical/specSheets/40149.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40150 | Tactical | Blued | Aluminum | Adjustable | Fixed | 4.40" | 8.50" | 34.6 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ Tactical Rimfire Pistol Model 40150|url=https://ruger.com/products/markIVTactical/specSheets/40150.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40159 | Target | Blued | Aluminum | Adjustable | Fixed | 5.50" | 9.75" | 35.8 oz | Target laminate grips | <ref>{{Cite web|title=Ruger® Mark IV™ Target Rimfire Pistol Model 40159|url=https://ruger.com/products/markIVTarget/specSheets/40159.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40160 | Hunter | Stainless | Stainless | Adjustable | Fiber optic | 6.88" | 11.12" | 44.2 oz | Target laminate grips | <ref>{{Cite web|title=Ruger® Mark IV™ Hunter Rimfire Pistol Model 40160|url=https://ruger.com/products/markIVHunter/specSheets/40160.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40167{{dagger}} | 22/45 Tactical | Cerakote | Polymer | Adjustable | Fixed | 4.40" | 8.50" | 33.3 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Tactical Rimfire Pistol Model 40167|url=https://ruger.com/products/markIV2245Tactical/specSheets/40167.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40172{{dagger}} | Hunter | Stainless | Stainless | Adjustable | Fiber optic | 4.50" | 8.50" | 38.5 oz | | <ref>{{Cite web|title=Ruger® Mark IV™ Hunter Rimfire Pistol Model 40172|url=https://ruger.com/products/markIVHunter/specSheets/40172.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40173 | Target | Blued | Aluminum | Adjustable | Fixed | 10.00" | 14.00" | 46.3 oz | | <ref>{{Cite web|title=Ruger® Mark IV™ Target Rimfire Pistol Model 40173|url=https://ruger.com/products/markIVTarget/specSheets/40173.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 40174 | Target | Stainless | Stainless | Adjustable | Fixed | 10.00" | 14.00" | 53.5 oz | | <ref>{{Cite web|title=Ruger® Mark IV™ Target Rimfire Pistol Model 40174|url=https://ruger.com/products/markIVTarget/specSheets/40174.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 43921 | 22/45 Lite | Anodized (gray) | Polymer | Adjustable | Fixed | 4.40" | 8.40" | 27.0 oz | Target laminate grips | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Lite Rimfire Pistol Model 43921|url=https://ruger.com/products/markIV2245Lite/specSheets/43921.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 43910{{dagger}} | 22/45 Lite | Anodized (red) | Polymer | Adjustable | Fixed | 4.40" | 8.40" | 25.0 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Lite Rimfire Pistol Model 43910|url=https://ruger.com/products/markIV2245Lite/specSheets/43910.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 43915{{dagger}} | 22/45 Lite | Anodized (magenta) | Polymer | Adjustable | Fixed | 4.40" | 8.40" | 25.0 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Lite Rimfire Pistol Model 43915|url=https://ruger.com/products/markIV2245Lite/specSheets/43915.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 43916{{dagger}} | 22/45 Lite | Anodized (olive drab) | Polymer | Adjustable | Fixed | 4.40" | 8.40" | 25.0 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Lite Rimfire Pistol Model 43916|url=https://ruger.com/products/markIV2245Lite/specSheets/43916.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 43924{{dagger}} | 22/45 Lite | Anodized (cobalt) | Polymer | Adjustable | Fixed | 4.40" | 8.40" | 25.0 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Lite Rimfire Pistol Model 43924|url=https://ruger.com/products/markIV2245Lite/specSheets/43924.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 43926 | 22/45 Lite | Anodized (gold) | Polymer | Adjustable | Fixed | 4.40" | 8.40" | 25.0 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Lite Rimfire Pistol Model 43926|url=https://ruger.com/products/markIV2245Lite/specSheets/43926.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 43927 | 22/45 Lite | Anodized (black) | Polymer | Adjustable | Fixed | 4.40" | 8.40" | 25.0 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Lite Rimfire Pistol Model 43927|url=https://ruger.com/products/markIV2245Lite/specSheets/43927.html|access-date=2021-03-16|website=ruger.com}}</ref> |- align="center" | align="left" | 43934 | 22/45 Lite | Anodized (gray) | Polymer | Adjustable | Fixed | 4.40" | 8.40" | 25.0 oz | Threaded barrel | <ref>{{Cite web|title=Ruger® Mark IV™ 22/45™ Lite Rimfire Pistol Model 43934|url=https://ruger.com/products/markIV2245Lite/specSheets/43934.html|access-date=2021-03-16|website=ruger.com}}</ref> |} {{dagger}} Distributor exclusive models

==See also== * [[AMT Lightning pistol]] * [[Colt Woodsman]]

==References== {{reflist}}

* Wilson, R. L. ''Ruger and His Guns: A History of the Man, the Company and Their Firearms''. 1996. {{ISBN|0-7858-2103-1}}.

==External links== * [http://ruger.com/service/productHistory.html History and Instruction Manuals]—Ruger's instruction manuals * [http://ruger.com/service/productHistory/PI-MarkII.html Mark II Manual]—Ruger Mark II manual with parts list and exploded assembly diagram * [https://www.youtube.com/user/RugerFirearms#p/search/2/LGEtudNJua4 Ruger-produced Disassembly video] * [https://www.youtube.com/user/RugerFirearms#p/search/1/UeY9s2TYAOk Ruger-produced Reassembly video] * [http://www.1bad69.com/ruger/field_strip.htm Field Stripping]—guide to field stripping the MK II pistol, with images * [http://www.1bad69.com/ruger/internals.htm Assembly/Disassembly]—guide to full assembly/disassembly * [https://web.archive.org/web/20091027140615/http://geocities.com/felixthefish.geo/mkii_overtravel.html Overtravel]—How to adjust the overtravel screw on a Ruger MK II Target model * [https://ruger-docs.s3.amazonaws.com/_manuals/markIII.pdf Ruger MK III Instruction Manual (PDF)]

[[Category:.22 LR pistols]] [[Category:Ruger semi-automatic pistols]] [[Category:Semi-automatic pistols of the United States]] [[Category:Weapons and ammunition introduced in 1949]] [[Category:Silenced firearms]]