Aero Precision M4E1 Upper Flat Dark Earth 5.56 / .223 Rem 16 Barrel ATLAS S-ONE Hanguard

Aero Precision Complete Upper Receiver M4E1-T 5.56 16in Mid-Length Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth. 56 Mid Pencil Barrel w/ ATLAS S-ONE Handguard Complete Upper Receiver. These AR15 Upper Receivers built by Aero Precision feature an advanced handguard attachment system that is incredibly secure yet easy to remove. Then this Aero Precision M4E1 Threaded 5.56 Mid Length Barrel Complete Upper Receiver provides a front and rear Picatinny rail for weapon accessories like laser sights lights and other attachments. This Aero Precision M4E1 Threaded Complete Upper Receiver w/ ATLAS S-ONE Handguard also has a .250 takedown pin hole for added portability and there is an integrated port door for enhanced cooling. Pick up the complete Aero Precision M4E1 Threaded Barrel w/ ATLAS S-ONE Handguard Complete Upper Receiver to get a rugged and lightweight gun barrel for your project. Specifications for Aero Precision M4E1 16in Threaded 5.56x45mm Complete Upper Receiver with Flash Hider: Manufacturer: Aero Precision Cartridge: 5.56x45mm NATO Overall Length: 26 in Barrel Length: 16 in Gas System Length: Mid Length Barrel Twist Rate: 1-7 Threads per Inch: 1/2x28 Muzzle Device: A2 Flash Hider Gun Model: AR-15 Condition: New Fabric/Material: 4150 CrMoV Gas Block Journal Size-Diameter: .750 in Handguard Style: Hybrid Rail Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Barrel Material: 4150 Chrome Moly Vanadium Gas System Type: Proprietary Bolt Carrier Group Included: No Charging Handle Included: No Magazine Included: No Features of Aero Precision M4E1 16in Threaded 5.56x45mm Complete Upper Receiver with Flash Hider: M4E1 Upper Receiver: New enhanced forging that gives the upper receiver a "billet look"; New picatinny profile that blends seamlessly with our Enhanced Series Handguards; M4 Feedramps; .250 takedown pin holes; Laser engraved T-marks; Port door and forward assist installed; ATLAS S-ONE Handguard: Front and rear picatinny rail; Eliminated center of top rail for weight reduction; Indexing grooves in 12:00 position for positive grip control; Quick disconnect sling socket at the 3 6 and 9 o'clock positions; Compatible with low profile gas blocks; 1.3" Inside diameter; 1.5" Outside diameter; Compatible with mil-spec AR15 upper receivers and barrels 5.56 Threaded Barrel: QPQ Gas Port Drilled; .0785 gas port; M4 Feed Ramp Extension; HP and MPI tested Package Contents: Aero Precision M4E1 16in Threaded 5.56x45mm Complete Upper Receiver with Flash Hider M4E1 Threaded Assembled Upper Receiver ATLAS S-ONE Handguard 5.56 Mid Pencil CMV Barrel Low Profile Gas Block and Mid-Length Gas Tube Aero Precision APAR700315M7: M4E1-T Complete Upper 16in 5.56 Mid-Length Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth