This complete upper includes our ATLAS R-ONE Handguard. 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 Assembled Upper Receiver
- 12" ATLAS R-ONE M-LOK Handguard
- 14.5" 5.56 Mid-Length CMV Barrel with Pinned and Welded VG6 Gamma 556 SL Brake (16" OAL)
- 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 our Enhanced Series Handguards
- M4 Feedramps
- .250 takedown pin holes
- Laser engraved T-marks
- Includes port door and forward assist installed
ATLAS R-ONE Handguard Features:
- Full top picatinny rail for optional attachments
- 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
14.5" 5.56 Mid-Length Barrel Features:
- Chamber: 5.56 NATO
- Length: 14.5" (16" OAL w/ Pinned Brake)
- Pinned Brake: VG6 Precision Gamma 556 SL
- Gas System Length: Mid-length
- Twist: 1/7 twist
- Material: 4150 CrMoV
- Finish: QPQ corrosion resistant finish both inside and out
- Gas Block: .750
- Gas Port: .0785
- M4 Feed Ramp Barrel Extension
- HP and MPI tested
Made in America!
