[ARES][GB-M4-H] Reinforced EFCS 8mm bearing Gear Box Shell[For M4/M16 Series]

Description:

• Able to attach the EFCS into this Gearbox Set (Need to Buy separately)
• 8mm Beaing Gearbox (8mm Bearing is excluded)
• Other Brand of Gears, Spring, Piston, Cylinder Head, Nozzle, and Tappet are compatible to others.

Specification:

• Material: Zinc Alloy
• Weight: 289g
• Compatibility: Any Brands of M4/M16 AEG Series[Version 2 Gearbox]
  (It needs to be modified prior to installing this gearbox to other brands of M4s.
• Colour: Black
• Bearing Size: 8mm Beaing/Oiless Bushing (Excluded)

Package Contents:

1. Gearbox x 1pc