VFC HK 417 AEG Retro Arms Gearbox Project gun w/extras Rare Discontinued!
VFC tappet (modified for RA gearbox). -VFC 8mm Bushings. -VFC Full steel rack piston/ alum head. -VFC double O ring Cylinder head/ nozzle. -VFC Muzzle brake. -VFC HK rear flip sight. The gun fires and feeds, but seems to have an overspin/ double feed issue.