Action: Multi-pump pneumatic - Caliber: .177 cal. (4.5 mm) BB or pellet - Capacity: 50 shot BB. Single shot/pellet - Weight: 3.10 lbs. - Sights: Fiber Optic front sight. Adjustable rear sight. 4 X 15 scope included. - Safety: Crossbolt trigger block - Max. Muzzle Velocity: 800 fps./BB; 665 fps./pellet - Overall Length: 37.6