This .22 caliber air rifle features an improved bolt design for easier cocking and loading. The rifled steel barrel provides greater accuracy and CO2 power provided by the 12 gram Powerlet provides 5500 feet per second of power. A great rifle for target ,plinking or small pests. Ergonomically designed ambidextrous grip fits the hand for perfect balance and comfort. Rear sight is open and fully adjustable.The Rifle also has an upgraded steel breech and also comes with a 1/2" unf thread.