The Firestorm Crank is a simple but effective, rapid fire trigger attachment. The Firestorm Crank will fire the trigger on your paintball marker 4 times for every turn of the crank. Turn it 10 times and lay down a firestorm. It will shoot 12-14 paintball per second. It mounts easily onto your A5 with just two screws that tighten up on the trigger guard.