Crosman DPMS SBR Full-Auto BB Air Rifle Kit with Red Dot Sight Tactical Short Barrel Rifle Adjustable 6 Position Butt Stock AR Compatible Pistol Grip Quad Rail forearm for accessory mounting Unique muzzle end cap Flip up back up iron sights (BUIS) Angled Foregrip Realistic Weight and Functions Blowback bolt-action 25rd magazine Uses 2 12-gram CO2 cartridges Length: 26.9” to 30.4” Basic Tactical Kit includes Crosman DPMS SBR Full-Auto BB Air Rifle, Speedloader and CenterPoint 1x30mm Large Battle Enclosed Reflex Sight with 3 MOA Red Dot and Picatinny Mounts Pro Kit includes Crosman DPMS SBR Full-Auto BB Air Rifle, Speedloader and CenterPoint 1x30mm Large Battle Enclosed Reflex Sight with 3 MOA Red Dot and Picatinny Mounts, 2 magazines, (10) 12gr CO2 cartridges and 1,500 BB's