Generally an improved version of first Ruger pistol. There is a hold-open device. Magazine holds 10 rounds. Introduced in 1982.

Introduced in 1999, to commemorate 50th Anniversary of first Ruger rimfire pistol. Fitted with 4.75" barrel, with fixed sights. Chambered for .22 LR cartridge. Pistol grips have a red Ruger medallion and Ruger crest on the barrel. Furnished in a red case. Weight 35 oz. Production limited to one year.

Same as above, with 6" barrel. Weight 37 oz.

Same as Mark II Standard, except made of stainless steel.

Same as above, with 6" barrel. Weight 37 oz. Note: In 1997, Ruger produced 650 of Model MK6, with special features for "Friends of the NRA" auction of the same year. These guns have high polish bluing, faux ivory grip panels, gold inlaid National Rifle Association inscription and gold inlaid number of "1 of 650" to "650 of 650".

Model incorporates the same improvements as Mark II Standard. Offered with 5.5" bull, 6.875" tapered and 10" heavy barrel. A 5.25" tapered barrel was added in 1990, but discontinued in 1994. Blued finish. This model has adjustable target sights. Introduced in 1982. Note: In 1989, approximately 2,000 5.5" bull barrel Mark II pistols, with blue barreled receivers and stainless steel grip frames were produced by Ruger on order from a Ruger distributor. They exist in the 215-25xxx to 215-43xxx serial number range.

Same as blued version, but made of stainless steel.

Similar to blue Mark II Target, with 6.875" bull barrel. Civilian version of a training pistol that the military is purchasing from Ruger. Only difference is this model does not have U.S. markings. Note: Add 150% to 175% premium for models with "U.S." marking. An expert examination and appraisal is suggested.

Stainless steel version of Government Model. Note: Same with U.S. markings. These are found in serial number range of 210-00001 to 210-18600. Only a couple dozen are in civilian hands.

Competition model features a stainless steel frame, with checkered laminated hardwood thumbrest grips, heavy 6.875" bull barrel factory drilled and tapped for scope mount, Partridge type front sight undercut to prevent glare and adjustable rear sight. Weight 45 oz. Note: In 1997, Ruger produced 204 of these pistols in blue instead of stainless steel for one of their distributors. They are very scarce. In 1995, Ruger produced a similar blued pistol (1,000 total: 500 each with or without scope rings) with 5.5" slabside barrels. These are not marked "Competition Target Model" like the previously described variation.

Introduced in 1996. This bull-barrel variation has a blued finish, with 4" barrel. Grips are checkered composition. Weight 38 oz.