Aero Precision M4E1-T Complete Upper, 16" 5.56 Mid-Length Barrel, 15" ATLAS R-ONE MLOK HG, Adj. Gas Block, VG6 Epsilon 556, BREACH Charging Handle, BCG - Anodized Black

Aero Precision M4E1-T Complete Upper, 16″ 5.56 Mid-Length Barrel, 15″ ATLAS R-ONE MLOK HG, Adj. Gas Block, VG6 Epsilon 556, BREACH Charging Handle, BCG – Anodized Black

The Aero Precision Complete Upper Receiver epitomizes speed, efficiency, and dependability for fashioning a semi-custom AR15 rifle. Crafted with meticulous precision, this 5.56 NATO M4E1 Threaded Complete Upper boasts a 16″ Mid-Length barrel, 15″ ATLAS R-ONE handguard, BREACH Charging Handle and Phosphate 5.56 NATO BCG w/ C158 Bolt. Meticulously machined, comprehensively assembled, and subject to rigorous test-firing by skilled Aero Precision armorers, it guarantees unparalleled performance.

* Includes Bolt Carrier Group, BREACH Charging Handle, Adjustable Gas Block, and VG6 Muzzle Device.

Includes:

• M4E1 Threaded Assembled Upper Receiver – Anodized Black
• 15″ ATLAS R-ONE Handguard – Anodized Black
• 16″ 5.56 CMV Barrel, Mid-Length
• .750 Adjustable Gas Block and Mid-Length SS Gas Tube
• AR15 BREACH Ambidextrous Charging Handle (Large Lever)
• AR15 5.56 Phosphate C158 Bolt Carrier Group
• VG6 Epsilon 556 Muzzle Device

M4E1 Threaded Upper Receiver Features:

• New enhanced forging gives the upper receiver a “billet look.”
• M4 Feed ramps
• .250 takedown pin holes
• Laser engraved T-marks
• Includes port door and forward assist installed

ATLAS R-ONE Handguard Features:

Aero Precision’s ATLAS attachment system is a secure and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

• Continuous top Picatinny rail
• 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

5.56 NATO Barrel Features:

• 16″5.56 NATO 1/7 twist, 4150 CrMoV, QPQ finish
• .750 gas block journal
• Mid-Length gas system
• M4 Feed Ramp Extension
• HP and MPI tested