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Aero Precision M4E1-T Upper 5.56 16″ Black


Availability: In stock

This complete upper includes Aero Precision’s new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Aero Precision’s proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.


M4E1 Threaded Assembled Upper Receiver
15″ ATLAS S-ONE M-LOK Handguard of choice
16″ 5.56 CMV Barrel
Low Profile Gas Block and Mid-Length Gas Tube
Product comes assembled
This complete upper does not include BCG or Charging Handle.

M4E1 Threaded Upper Receiver Features:
New enhanced forging that gives the upper receiver a “billet look”
New picatinny profile that blends seamlessly with Aero Precision’s Enhanced Series Handguards
M4 Feedramps
.250 takedown pin holes
Laser engraved T-marks
Includes port door and forward assist installed

ATLAS S-ONE Handguard Features:
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 AR-15 upper receivers and barrels

16″ 5.56 Mid-Length Barrel Features:

5.56 NATO 16″ Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
.750 gas block jAero Precision’snal
Mid-length gas system, .0785 gas port
M4 Feed Ramp Extension
HP and MPI tested
Standard A2 flash hider


Manufacturer’s Part #APAR700305M7

UPC: 840014601585


Aero Precision