Description

The Aero Precision M4E1-T 5.56 NATO is a complete upper receiver designed for AR-15 platform rifles. This upper prioritizes functionality and customization. The M4E1 Threaded Assembled Upper Receiver features a new enhanced design for a sleek look and easy integration with M-LOK handguards. It includes a port door and forward assist and is available in an OD green anodized finish.

Includes:

• M4E1 Threaded Assembled Upper Receiver – Anodized OD Green
• 10.3″ M-LOK ATLAS R-ONE Handguard – Anodized OD Green
• 11.5″ 5.56 NATO Carbine 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

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:

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