Crosman Z79 Zombie Inoculator AEG Airsoft Rifle Shoots 6mm Airsoft BB's Velocity of Up to 275 feet per second Battery and Charger Included Full Auto Shooting Mode Please see manual below for troubleshooting instructions on safety, break-in, cocking, loading, unloading, sight adjustment, and maintenance Shoots 6mm Airsoft BB's Volocity of opto 275 feet per second Battery and Charger Included Full Auto Shooting Mode