WE Desert Warrior 4.3 style gas blowback pistol Made completely from metal with an anodized finish, it's more than just a replica! BBs fly out the muzzle at 300 fps, with realistic blowback action. Velocities for propane and green gas are 290-310 fps using .20g BBs. *Propane adapter & green gas are not included. The WE Hi-Capa 5.1 has a 14mm counterclockwise threaded barrel for attaching fake silencers.