The Ruger Mark II pistols represent continuing refinements of the original Ruger Standard and Mark I pistols. More than two million of this series of highly perfected autoloading rimfire pistols have been produced since 1949. The Ruger Mark II cannot be duplicated by any other manufacturer. Ruger makes models perfect for target competition, small game hunting, plinking, and handgun training-in short, anything suited to .22 rimfire pistol use.

All Ruger Mark II pistols are constructed to the same basic specifications as thousands of pistols supplied to the U.S. Army for training. The civilian version of the pistol supplied to the Army is designated the "Government Target Model." These pistols are individually targeted at the factory with a patented laser sighting device and the factory-test target is packaged with each Government Target Model.

The bolt can be manually operated with the safety in the "on" position for added security while loading and unloading. For added convenience a bolt stop is built into the Mark II design. The bolts on all Ruger Mark II pistols lock open automatically when the last cartridge is fired, if the magazine is in the pistol. The bolt stop also can be manually activated to lock the bolt open by manipulation of a thumbpiece in the left side of the grip frame, adding to ease of loading and cleaning. The Ruger Mark II pistol uses .22 Long Rifle ammunition in a detachable, ten-shot magazine that is standard on all Mark II models (except the Ruger 22/45, which uses a different ten-shot magazine that is not interchangeable with other Mark II magazines).

The Target Model is equipped with a heavier, less tapered barrel than the standard model. Front sight is Patridge-type blade, .125" wide, undercut to prevent glare. The Target Model's rear sight has click adjustments for windage and elevation.

The Bull Barrel and Government Target Models are equipped with a heavy, non-tapered "bull" barrel. Their front sight is of Patridge-type, and their rear sight has click adjustments for windage and elevation. Government Models have a longer bull barrel and are designated by a "G" in the catalog number. The MK-4B and P-4 are equipped with a shorter bull barrel ideal for backpacking, small game hunting, and plinking. The MK-4B has smooth, laminated hardwood thumb-rest grips.

Small-bore target competitors can now get all the value, strength, and design excellence for which Ruger is famous in the .22 Mark II Competition Model, a .22 rimfire pistol built specifically for their needs. The Competition Model is constructed of corrosion-resistant stainless-steel; checkered laminated hardwood thumb-rest grips; heavy flat-sided competition bull barrel; factory drilled and tapped receiver, optical sight base adaptor and 1" Ruger scope rings for optical sight installation. The front sight is Patridge-type, .125" wide, undercut to prevent glare. The rear sight has click adjustments for windage and elevation.

The Ruger 22/45 pistol features a grip angle and magazine latch virtually identical to the 1911 Model .45 ACP. This rimfire pistol has the proven Mark II steel action and a grip frame of a super tough, fiberglass-reinforced, lightweight composite.

Caliber: .22 Long Rifle, standard or high velocity. Barrel: permanently assembled to receiver by 20-pitch threads. Trigger: grooved with curved finger surface, 3/8" wide. Safety: positively locks sear. Grips: Delrin gloss with sharp, diamond checkering. Finish: polished overall and blued or brushed satin stainless-steel. Each model comes standard with a molded, high-impact, lockable case, lock with keys and extra magazine.