RG108 is a launcherless B.B. Shower. (Rifle Grenade) Rifle Grenade was widely used in World War 2 and is widely used by Europe. You only need to attach this grenade on our special designed flash hider. Then, you fire a B.B. bullet from your AEG and shoot the "fire pin" to fire the 108 rds B.B. at once. RG108 also have the quick detach function. The package including a B.B. Shower and a flash hider. (Quick deteached) This B.B. shower can only use GREEN GAS or you can't fire it.