Ruger Mark II Target KMK512 .22 LR Stainless 5.5" Bull Barrel Semi-Auto Pistol (1994)
The Ruger Mark II Target KMK512 is a 1994-production, full-size .22 LR pistol built with a 5.5-inch stainless bull barrel and a satin stainless frame. Discontinued in 2005, the stainless “K” variant offers Ruger’s trusted blow-back action, dual charging ears, and heel-release magazine in a corrosion-resistant package. Its target-grade sights, crisp single-action trigger, and balanced bull barrel make it a solid choice for serious rimfire shooting or collection.
Condition
Overall Condition: Very good – shows only light, superficial signs of prior handling or use.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
Rifling Condition: Excellent – sharp lands and grooves.
Specific Condition Notes: Light scratching and minor blemishing are present on the stainless surfaces.
What’s Included
- 1 × 10-round Ruger factory Mark II steel magazine
This KMK512 pairs Ruger’s proven Mark II blow-back action with all-stainless construction. The satin finish resists corrosion while offering a classic look that collectors recognize immediately.
The 5.5-inch bull barrel adds forward weight for steadier off-hand aiming and consistent shot-to-shot stability. Its Patridge-style front blade and fully adjustable square-notch rear sight deliver a clean, repeatable sight picture for precision work.
A heel-style magazine release and dual charging ears reflect the original Mark II layout, free of the loaded-chamber indicator and magazine disconnect introduced in the later Mark III series. This keeps the handling characteristics true to the early-1990s design.
Checkered black synthetic grip panels provide a secure feel without adding bulk, while the internal hammer and single-action trigger contribute to a crisp, predictable break that rimfire shooters appreciate.