This complete upper includes their 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. Their 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
ATLAS S-ONE Handguard of choice
7.5″ 5.56 Pistol Length CMV Barrel
Low Profile Gas Block and Pistol Length Gas Tube
Product comes assembled
This complete upper does not include BCG or Charging Handle.
The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.
M4E1 Threaded Upper Receiver Features:
New enhanced forging that gives the upper receiver a “billet look”
New picatinny profile that blends seamlessly with our Enhanced Series Handguards
.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 AR15 upper receivers and barrels
Caliber: 5.56 NATO Barrel: 7.5" Twist: 1:7" Weight: 1.25 lbs