The SR22 is a polymer-framed .22 LR pistol designed as a trainer companion to Ruger's SR9 and center-fire SR series. Features ambidextrous manual safety, an external hammer, and a Picatinny rail. Accepts both standard and suppressor-thread barrel variants. Type: Pistol Action: Semi-Automatic Caliber: .22 LR Capacity: 10 Year introduced: 2012, USA Weight: 17.5 oz Overall length: 6.4" Status: Active Intended use: Training, Plinking, Introduction