The Remington Model 597 is a modern semi-auto .22 LR with a detachable box magazine and aluminum alloy receiver. Designed as a direct competitor to the Ruger 10/22. Type: Semi-Auto Rifle Action: Blowback Caliber: .22 LR Capacity: 10 Year introduced: 1997, USA Weight: 5.5 oz Overall length: 40" Status: Active Intended use: Plinking, Training, Small Game