Ruger MK II
| Ruger MK II | |
|---|---|
| Type | Semi-automatic pistol |
| Place of origin | United States |
| Production history | |
| Manufacturer | Sturm, Ruger & Co. |
| Produced | 1982—2005 |
| No. built | 3,000,000+ |
| Specifications | |
| Weight | 46 oz. (w/ 6 7/8 in bull barrel) |
| Length | 11 1/8 in (w/ 6 7/8 in bull barrel) |
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| Cartridge | .22 LR |
| Action | Blowback |
| Rate of fire | semi-automatic |
| Feed system | 10-round magazine + 1 in chamber |
The Ruger MK II is a rimfire single-action semi-automatic pistol chambered in .22 Long Rifle and manufactured by Sturm, Ruger & Company. Ruger rimfire pistols are some of the most popular handguns made, with over three million sold.
The MK II ("Mark Two") was made from 1982 to 2005. Previous models include 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 Colt 1911 rather than the steel frame's Luger P08-like layout. The MK II was removed from production in 2004, when it was replaced by the MK III. All Ruger rimfire pistols are chambered in .22 Long Rifle only.
The original Ruger pistol, now called the Standard, had no model number, as it was the first, and for a time, only gun made by Sturm, Ruger. Prior to Bill Ruger's partnership with Sturm, he had successfully duplicated two Baby Nambu pistols while working in his garage, from a U.S. Marine's captured Nambu, shortly after World War II. Although deciding against marketing the Baby Nambu Pistols, Ruger did incorporate the Nambu style rear cocking device and modified the Nambu's silhouette, plus he added a 4.75 in (12.1 cm) lightweight barrel with fixed sights.
The MK I added a Target model, which had a 5.5 in (14 cm) bull barrel, or a 6.875 in (17.46 cm) heavy taper barrel and adjustable sights. The MK II added a slide stop that held the slide open on the last round, and also was available in stainless steel. The MK II has been available in a number of barrel lengths; 4.75 in (12.1 cm) and 6 in (15 cm) lightweight barrels; 4 in (10 cm), 5.5 in (14 cm), 6.875 in (17.46 cm) and 10 in (25 cm) bull barrels, and 5.25 in (13.3 cm) and 6.875 in (17.46 cm) 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 reduce glare. The MK II target model(KMK-678) had polygon rifling where other models had traditional land and groove riling.
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