The Umarex Cowboy Lever Action spits shells when you operate the lever and you load it in realistic fashion 10 BB cartridges inserted into its under barrel tube magazine. Put a little RWS Chamber Lube on the tip of two 12-gram CO2 cartridges and insert them butt-to-butt behind the hardwood stock's removable buttplate, cock the lever, then you are loaded and ready to send 10 shots downrange! Quickly cock the lever to shoot each round and eject the shell, just like the real steel powder burner, but in a backyard friendly quiet design.