SPECIFICATIONS Caliber: .22LR Action: Single Action Length (Closed): 3.375″ Height (Closed): 2.125″ Thickness: 0.5″ Weight: 7 oz. Materials: 4140 Pre-hardened Steel (barrel, bolt, trigger) / Aluminum (frame, handle). 100% machined billet. Finish:Corrosion Resistant Isonite® Steel / Hard Coat Anodized Aluminum. Safety:Will not fire when closed