The Colt Diamondback .22 LR is a usa-made da/sa pistol chambered in 22 LR, introduced in 1966. Primary use: Range/Target, Small Game. Type: Pistol Action: DA/SA Caliber: 22 LR Capacity: 6 Year introduced: 1966, USA Weight: 36 oz Overall length: 8.5" Status: Discontinued Intended use: Range/Target, Small Game