Powered By Two 12-Gram CO2 Cartridges (Not Included) Bolt-Action, Single Shot Includes Diopter Peep and Interchangable Front Sights Adjustable Trigger Biathalon-Style Stock w/ Rubber Buttpad Specifications: Caliber: 0.177 cal Velocity: 650 fps Action: Bolt-action Barrel Style: Rifled Fire Mode: Single-shot Gun Weight: 7.8 lbs Overall Length: 39.5" Barrel Length: 21.5" Loudness: 2-Low-Medium Mechanism: CO2 Rail: 11mm dovetail Safety: Manual Rear Sights: Diopter Shots per Fill: 60 Trigger Adjustability: Two-stage adjustable Trigger Pull: 1 lb Use: Plinking & target practice