The BSA Martini International Mk II is a united kingdom-made single-shot rifle chambered in .22 LR, introduced in 1950. Primary use: hunting, target. Type: Rifle Action: Single-Shot Caliber: .22 LR Capacity: 1 Year introduced: 1950, United Kingdom Weight: 104 oz Overall length: 43.5" Status: Discontinued Intended use: hunting, target