DESCRIPTION
This complete upper includes our new 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 Handguard
- 16″ 5.56 Mid-Length CMV Barrel
- Low Profile Gas Block and Mid-Length Gas Tube
- Product comes assembled
- This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab
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
- Learn More about our NEW ATLAS Handguards
5.56 Mid-Length Barrel Features:
- Chamber: 5.56
- Length: 14.5in
- Twist: 1 in 7
- Threading: 1/2inx28
- Material: Chrome Moly Vanadium
- Finish: QPQ corrosion resistant finish both inside and out
- Gas Block: .750
- Gas Port: .0785
- Gas System Length: Mid
- Weight: 26oz
- M4 Barrel Extension
- HP and MPI Tested
Armstopia (store manager) –
Much more real estate on the top rail compared to the S-One but heavier, I’d go with the S-One if building a pistol.