| WE G39 Series Airsoft GBB Rifle Firing Pin Set (#81, 82, 83, 85, 139)
Newest version factory direct replacement parts.
For: WE G39 Series GBB Gas blowback and compatible Airsoft gas blowback models.
Manufacture: WE USA
Part # from explosion diagram: #81, #82, #83, #85, #139 | 
