This single-shot pellet rifle takes advantage of CO2 valve technology and Umarex's SilencAir 5-chamber noise dampening system to make the Fusion one amazingly quiet airgun. With the Fusion, you can drop two 12 gram Umarex CO2 capsules in the cylinder, load an RWS pellet, cycle the smooth bolt, shoulder its comfortable, lightweight synthetic stock, peer through the included 4x32 scope, and quietly place pellets through the same hole of your target at 10 meters. Amazingly Accurate. Incredibly Quiet.