AERO PRECISION M4E1 .223 REM ENHANCED M-LOK® Complete Upper BLK 7.5″

Includes:– M4E1 Enhanced Assembled Upper Receiver – Included 5.56 BCG Phosphate – Included Charging Handle Standard – Included A2 flash hider – GEN2 Enhanced Handguard – 7.5″ 5.56 Pistol Length CMV Barrel – Low Profile Gas Block and Pistol Length Gas Tube – Optimal compatible to M4E1 Lower ReceiversM4E1 Upper Features:– Forged from 7075 T6 aluminum – Precision machined to M4E1 specs – M4 feedramps – Matte black hard coat anodized Mil 8625 Type 3 Class 2 – Laser engraved T-marks (Anodized only) – Comes assembled, with port door and forward assist installed – Accepts standard AR15/M16 components – Handguard mounting platform is forged into the receiver – Works with Aero Precision handguards but also fits most BAR-system handguardsGen 2 Enhanced Handguard Features:– 1pc free float design – Built in anti-rotation tabs – Scalloped rails – Continuous top rail – 1.78″ inside diameter fits most muzzle devices and 1.5″ suppressors – Compatible with low profile gas blocks – Gen 2 Feature – Quick disconnect sling socket at the 3, 6 and 9 o’clock positions – Gen 2 Feature – Additional milling along flats to aid with gripping and add visual appeal – Gen 2 Feature – New profile for the continuous picatinny top rail7.5″ 5.56 Pistol Length Barrel Features:– Chamber: 5.56 – Length: 7.5″ – Twist: 1 in 7 – Threading: 1/2″x28 – Material: Chrome Moly Vanadium – Finish: QPQ corrosion resistant finish both inside and out – Gas Block: .750 – Gas System Length: Pistol – Weight: 17.25oz – M4 Barrel Extension – HP and MPI tested