Fully licensed by STI International, the DUTY ONE airsoft pistol looks and feels like the real deal. Based off of the classic Model 1911 pistol, the STI edition brings with it several upgrades. The frame on the STI Duty One Airsoft Pistol CO2 Blowback Black has an integrated picatinny rail so you can easily mount your laser or tac light. The STI Duty One Airsoft Pistol CO2 Black also features a high rise beavertail grip for added comfort and reduced slippage when holding the pistol. Using an easy load system, the 12 gram CO2 cartridges used to power the STI Duty One Airsoft Pistol CO2 Blowback Black is hidden in the grip, and is not in the magazine. Finally, your STI Duty One Airsoft Pistol CO2 Blowback Black comes with a unique serial number and authentic STI logo for added realism!