Introducing the Umarex Prymex .177 Caliber Air Rifle an affordable break barrel air rifle that has everything needed for plinking, pest control, or small game hunting. In .177 caliber standard lead pellets achieve a velocity of 1,000 feet per second. The gas piston break barrel design ensures smooth and reliable operation, while the dovetail scope mount allows for easy customization with the included 4×32 scope.