The Umarex Strike Point multi-pump pellet pistol is available in .177 or .22 caliber. It shoots one pellet at a time with a simple to use bolt action, just pull the bolt back, pump the gun up, load a pellet, close the bolt, push the safety off, and safely shoot the pellet at your target. The pneumatic strike point works with a few as three pumps or as many as 10. It even incorporates Umarex SilencAir Technology, a noise suppressor thats a first for an air gun of this type. This amazingly quiet Umarex Strike Point is variable power, which mean you control its energy output by the number of pumps. It fires lightweight pellets at 650 fps in .177 and 520 fps in .22. A great air gun for the back yard where laws allow or for indoor ranges with safe back stops.