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
- 7" M-LOK ATLAS R-ONE Handguard
- 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. These products may be selected as add-ons under the Finish Your Build tab
- 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
- 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
7.5" 5.56 Pistol Length Barrel Features:
- Chamber: 5.56
- Length: 7.5"
- Twist: 1 in 7
- Threading: 1/2"x28
- Material: Chrome Moly Vanadium
- Finish: QPQ corrosion resistant finish both inside and out
- Gas Block: .750
- Gas System Length: Pistol
- Weight: 17.25 oz
- M4 Barrel Extension
- HP and MPI Tested
| Made In America? | Yes |
|---|---|
| Platform | AR15 |
| Series | R-ONE/S-ONE |
| Caliber | 5.56 NATO |
| Barrel Length | 7.5" |
| Weight(s) | - |
| Other | N/A |