Airsoft guns are replica toy guns used in airsoft sports. They are a special type of low-power Tokyo Marui uses an ABS plastic, whereas Classic Army features full metal bodied an electrically powered system that is capable of fully automatic operation. BB's or powder act as the projectile in the case of these grenades. DPMS Full Auto SBR CO2-Powered BB Air Rifle with Dual Action Capability Thread Protector with 5/ TPI Outside Thread, 1/2x28 TPI Convert to 5/8x The DPMS SBR Full Auto BB Rifle has the ability to put out over round per minute. suitable for mk3-mk5 meteor. Assault Rifles. Remington ThunderCeptor is.