It is also a common screw on the A5 and X7, so stock up just in case you need spares! It fits the A5 grip frame, the Cyclone Feed Bottom Plate, and it holds the Cyclone Paddles in place.
This product is used in the following guns: A5 Basic, A5 Response, A5 E-Grip Electronic, A5 Stealth, X7 Basic, X7 Response, X7 E-Grip Electronic, Pro Carbine, C-3, Gryphon.