Invader Auto Features This Semi-Auto Action pre-charged pneumatic air rifle is a great weapon for small game hunting or for target practice. It is chambered in .22 caliber with a barrel length of 19.7 and has a velocity of 1000 fps. This Air Rifle has Picatinny accessory rails beneath and on the sides of the forearm. It comes with three magazines and has a capacity of 12-rounds with a spare magazine carrying slot in the stock for 1 spare magazine. Along with a fully shrouded precision rifle barrel for accuracy this air gun is perfect for precision-based fun shooting. Invader Auto Specifications Max Velocity: 1000 fps Overall Length: 40.5 Buttplate: Rubber Function: Repeater Weight: 8.2 lbs Scopeable: Weaver/Picatinny Safety: Manual Suggested for: Small game hunting/target practice Caliber: .22 (5.5mm) Muzzle Energy: 34 ft/lbs Loudness: 3-Medium Barrel Length: 19.7 Barrel: Rifled Action: Semiautomatic Powerplant: Pre-charged pneumatic Cylinder Size: 255 cc