Aero Precision M4E1-E Complete Upper, 16" 300 Blackout Pistol Barrel, 15" Enhanced MLOK HG - Anodized Black

Aero Precision M4E1-E Complete Upper, 16″ 300 Blackout Pistol Barrel, 15″ Enhanced MLOK HG – 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 300 Blackout M4E1 Threaded Complete Upper boasts a 16″ Pistol barrel and a 15″ Gen 2 Enhanced handguard. Meticulously machined, comprehensively assembled, and subject to rigorous test-firing by skilled Aero Precision armorers, it guarantees unparalleled performance.

* Does not include Bolt Carrier Group or Charging Handle.

Includes:

• M4E1 Threaded Assembled Upper Receiver – Anodized Black
• 15″ M-LOK Gen 2 Enhanced Handguard – Anodized Black
• 16″ 300 BLK Pistol Barrel
• Low-profile Gas Block and Gas Tube
• Standard A2 Flash Hider

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

Gen 2 Enhanced Handguard Features:

• 1pc free-float design
• Built-in anti-rotation tabs
• Scalloped rails
• Quick disconnect sling socket at the 3, 6, and 9 o’clock positions
• Compatible with low-profile gas blocks
• 1.78″ Inside diameter, fits most 1.5″ suppressors
• Additional milling along flats to aid with gripping and visual appeal
• New profile for the continuous Picatinny top rail

300 BLK Barrel Features:

• .300 BLK 1/7 twist, 4150 CrMoV, QPQ finish
• .750 gas block journal
• Pistol gas system
• M4 Feed Ramp Extension
• HP and MPI tested