5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (16 inch M4 Mid-length Carbine)-14mm CCW (Require AEG Barrel Nut)

This replacement outer barrel is single piece CNC Aluminum machined goodness, to replace the stock barrel of the TM M4A1 Zet System GBBR. Wanting to give that extra feel and look to your M4 then this is a upgrade to go for.

Aluminum CNC Machined Process

16 inch Aluminum M4 Mid-length Carbine Outer Barrel

14mm CCW Muzzle Threading

Only for Tokyo Marui M4 ZET GBB system, does not fit AEGs