The Colt 1911 NBB is a heavy weight, ultra realistic CO2 powered airsoft pistol. The 1911 styled handgun features a semi-automatic firing configuration. The pistol propels a BB up to 395 feet per second. The magazine release is in the traditional thumb release location, just behind the trigger guard at the top of the grip. Within the grip is housed a single 12-gram CO2 capsule (not included), which is accessed on the base of the grip. Don't forget to grab some CO2 Cartridges!