NOT INCLUDED IS THE BCG, CHH & THE COMPLETE LOWER. INCLUDED IS THE UPPER ASSEMBLY.
The flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper! To ensure even more strength they are Mil-Spec Type 3 hard coat anodized in rugged black.
The Upper features a 10.5” 5.56 x 45 barrel made of the best barrel material known to man, 4150 Chrome Moly steel then Nitride coated! This upper is compatible with most subsonic and supersonic ammunition, with or without a sound suppressor in place. It has a 1:7 twist rate, carbine gas system and head spaced twice from the US manufacturer.
The 12” CBC Keymod Rail is made from Airplane grade Aluminum & then hard coat anodized for durability.The end result, the best quality rail for the best value in the market!
Please Note: An “AR-15 Pistol” upper assembly has a barrel less than 16” in length. Pistol uppers are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law. Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.