Umarex Steel-Strike Automatic Air Rifle

Runs on reliable and easy-to-find 12 gram CO2 cartridges housed in the stock (CO2 NOT included)
Features flip-up sights
Drop-free mag holds 900 BBs in its main reservoir and is fast and easy to load
Choose between single shot mode or 6-round “full-auto” burst mode
Shoots .177 caliber steel BBs at up to 400 fps