CBC AR15 Upper Assembly - Black | 5.56 NATO | 16" Barrel | 13.5" CBC Arms Keymod Handguard/Rail Bundled w/ Anderson 5.56/300 BLK M16 Bolt carrier Group - Black Nitride & Tactical Superiority Ambi AR Charging Handle

This AR-15 Upper Assembly features 16 inch 5.56 Colt Competition 4150 chrome moly barrel with a black nitride finish. The upper receiver is a forged M4 flat top upper, allowing you to easily attach rifle scopes and red dot sights to the picatinny rail. It is outfitted with a 13.5″ Keymod handguard that features strong attachment points for accessories resulting in accessories and optics having an excellent return to zero capability when detached and reattached.   7075-T6 Aluminum Mil-Spec Anodized Receiver Carbine Length Gas Tube Assembly 16″ 5.56 NATO Barrel 4150 Chrome Moly Steel Nitride Coated Barrel Standard Flash Hider Twist Rate: 1:8 13.5″ Handguard/Rail   The Anderson Mfg. Bolt and Bolt Carrier group comes complete with Cam Pin, Firing Pin and Firing Pin Retainer. Compatible with 5.56 NATO, .223 REM, and .300 Blackout RF-85 TREATED - Non-treated BOLT CARRIER FINISH - Nitride BOLT CARRIER MATERIAL - 8620 Steel BOLT FINISH - Magnesium Phosphate BOLT MATERIAL - 9310 Steel PRODUCT UPC  - 712038922307