Description
DESCRIPTION
This Aero Precision M4E1 Threaded 10.5″ 5.56 Atlas R-ONE Complete Upper FDE receiver features the same tried-and-true construction and aesthetics as our M4E1 Threaded Upper Receivers. The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our 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.
Includes:
- M4E1 Threaded Upper Receiver
- 9.2″ ATLAS R-ONE Handguard
- 10.5″ 5.56 CMV Barrel
- Low Profile Gas Block and Carbine Length Gas Tube
- Port Door Assembly
- A2 Flash Hider
- This complete upper receiver 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 our 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
- 1.3″ Inside diameter
- 1.5″ Outside diameter
- Compatible with mil-spec AR15 upper receivers and barrels
- M-LOK attachment points
10.5″ 5.56 Barrel Features:
- 5.56 NATO 10.5″ Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
- .750 gas block journal
- Carbine length gas system, .0785 gas port
- M4 Feed Ramp Extension
- HP and MPI tested
- Standard A2 flash hider
