The TSD Sports SD1911 CO2 pistol features include sliding grip panel to conceal the CO2 locking base, functional safety, and heavy weight inserts. The highly efficient CO2 system can fire over 100 BB's on one CO2 cartridge. Packaged in a plastic pistol case. FPS: 370-400 w/ 0.20g Rate of Fire: N/A Action: Non-Blowback, Semi-Auto Hop-up: N/A Other items needed: 12g CO2 cartridge, TSD Tactical 0.20g, 0.23g, or 0.25g BB's