The CZ 512 is a semi-auto .22 LR with the same interchangeable barrel system as the 455 bolt guns. Features a modular design with an aluminum alloy upper and polymer lower. Type: Semi-Auto Rifle Action: Blowback Caliber: .22 LR Capacity: 5 Year introduced: 2012, Czech Republic Weight: 5.9 oz Overall length: 39.3" Status: Discontinued Intended use: Plinking, Target Shooting, Small Game