AR-15 Extreme Environment Upper Receiver (OD Green)

If you demand a top quality upper receiver that can handle whatever a zombie apocalypse could throw at it than look no further. The EXO coating used on this upper receiver provides permanent dry lubricity, radically improves performance of your AR-15 and eliminates the need to apply oil or grease to treated parts for the life of the weapon. The average lifespan of the coating is 30k-50k+ rounds. This upper receiver comes complete with: EXO Coating (The same coating Fail Zero Uses) Dust Cover Assembly (Installed) Forward Assist (Installed) Charging Handle (EXO coated and matches the color chosen) M4 Feed Ramps (EXO coated) Ceramic Titanium Painted Top Coat For Extreme Durability