Maxx Model Double O-Ring Aluminum Piston Head LiPo High Voltage Batteries This is the QD -

This is the QD - quick detach upgraded model D4RGBQ

Wolverine Airsoft's high-performance HPA system features straightforward controls that

Fits on the new airsoft Elite Force AS-01 or AS-02 Striker airsoft sniper rifles (see drop-down menu option)

and side tac rails

Do not leave it plugged into your gun when in storage

Maxx Model Double O-Ring Aluminum Piston Head LiPo High Voltage Batteries This is the QD -The Maxx Model Double O Ring Aluminum Piston Head and bearing. Fits airsoft M4 AEGs and ALL other gearbox version (all versions) guns. Double rubber o ring for tighter seal and compression. An excellent high quality piston head for upgrades. High quality aluminum red for durability.