GHK - M4 GBB (Barebone Version)


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Partially assembled GHK M4 GBB platform to allow user complete the rifle with desired components.

Package includes:
- Upper receiver with bolt assist and dust cover
- Complete lower receiver with A2 grip and carbine buffer tube
- Complete Bolt Carrier Group
- Magazine
- Hop Chamber with barrel extension and chamber packing
- Carbine length dummy gas tube

Parts required to complete :
- Carbine stock
- Outer barrel
- Inner barrel ( AEG Type )
- Gas block
- Sighting system(s)
- Muzzle device
- Handguard / Rail