Stock Status: Aero Precision M4E1 Barreled Upper, 14.5" 5.56 Mid Barrel, ATLAS R-ONE 12" M-LOK HG
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.
Be sure to use the link below to choose a BCG and charging handle as this upper does not come with either.
Be sure to use the link below to choose a BCG and charging handle as this upper does not come with either.
Click here for Charging Handles
- M4E1 Threaded Assembled Upper Receiver
- ATLAS R-ONE Handguard of choice
- 14.5" 5.56 Mid-Length CMV Barrel
- Low Profile Gas Block and Mid Length Gas Tube
- Product comes assembled
M4E1 Upper 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
| Barrel | Specifications |
|---|---|
| Caliber | 5.56 |
| Length | 14.5" |
| Material | 4150 Chrome Moly Vanadium |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | MidLength |
| Gas Block Journal | .750" |
| Dimpled? | No |
| Twist Rate | 1:7 |
| Muzzle Thread | 1/2x28 TPI |
| Weight | 26oz |
| Barrel Extension | M4 Feed Ramps |
- Maximum Purchase:
- 5 units
