The Ruger Mark II is a highly reliable and accurate semi-automatic rimfire pistol chambered in .22 Long Rifle. Manufactured from 1982 to 2005, it features a single-action trigger, a durable steel or stainless steel frame, and a fixed 10-round magazine. 
 
Core Specifications
Caliber: .22 Long Rifle
Action Type: Straight blowback, semi-automatic
Trigger: Single-Action (SA)
Capacity: 10 rounds
Frame: Steel or Stainless Steel (Polymer on 22/45 variants)
Safety: Frame-mounted manual safety