The Sig Sauer 1911 TacOps is a semi-automatic 4.5mm (.177 caliber) CO2-powered air pistol. This full-metal airgun is designed with a blowback slide to simulate recoil and includes functional features such as an ambidextrous thumb safety and a working grip safety. It is equipped with a fixed blade front sight, a white dot rear sight, and an integrated M1913 accessory rail for mounting tactical attachments. The air pistol utilizes a 12-gram CO2 cartridge housed within a 17-round drop-free magazine and is capable of reaching velocities up to 300 FPS. Sig Sauer 1911 TacOps 4.5mm 12gr CO2 Black Airgun AIR-1911TAC-BB