Del-Ton AR-15 Pre-Ban Upper Black 5.56 NATO / .223 Rem 16 Barrel

AR-15 Pre-Ban Upper Features This barrel assembly has a 16 barrel with M4 profile 1x9 twist CAR handguards with single heat shields and A2 Flash Hider. AR-15 Pre-Ban Upper Specifications Chrome Moly Vanadium M4 Feed Ramps 16 Length 1x9 Twist A2 Flash Hider Manganese Phosphated Phosphated under Front Sight Base Taper Pins on A2 Front Sight Base Threaded Muzzle M4 Profile 5.56 X 45 mm Phosphated 8620 Steel Carrier Assembly Carpenter 158 Bolt HPT/MPI Tested Heat Treated and Plated Mil-Spec Chrome Lined Carrier Interior Carrier Key - chrome lined attached with Grade 8 Screws Properly Staked & Sealed Gas Key Carbine Length Aluminum Delta Ring Single Heat Shield Forged 7075 T6 Aluminum A3 Flat Top With M4 Feed Ramps Hard Coat Anodized Mil-Spec Ejection Port Cover and Round Forward Assist Right Hand Ejection Bore s surface is coated with dry film lube over the anodized surface