Compatibility: Cybergun LE/MIL G series / G17 G17 G18C and other compatible Pistols derived from the Tokyo Marui system Socom Gear / Lone Wolf series. ISSC Austria M22 / M-22 series. ZEV custom models. APS ACP / Carbine SMG. CAA Roni SMG. And other Tokyo Marui / WE-Tech systems derived compatible gas pistols.