Long live BB gun fun! The Marlin Single Action Revolver is the fun way to plink those tin cans away on the weekend or anytime you're itching to squeeze a trigger. Powered by a single 12 gram CO2 cartridge housed in the grip of the pistol and 18 BBs at the ready in the integral magazine, the Marlin Revolver has a 5 inch barrel from which BBs will launch up to 400 FPS. CO2 cartridge installation and removal is a cinch with the tool needed for this process built into the right side grip panel. Remember to put a drop of silicone oil, like RWS Chamber Lube, on the tip of the CO2 cartridge before inserting and don't leave a CO2 cartridge in the pistol because the constant pressure will drastically reduce the life of the valve seal.