Aero Precision M4E1 Threaded 12.5" 5.56 Carbine Length Complete Upper Receiver w/ ATLAS R-ONE Handguard - FDE Cerakote
$502.99
Out of stock
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″ M-LOK ATLAS R-ONE Handguard
- 12.5″ 5.56 Government Profile CMV Barrel, Carbine Length
- Low Profile Gas Block and Carbine Length Gas Tube
- AR15 A2 Birdcage Flash Hider
- 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
12.5″ 5.56 CMV Carbine Length Barrel Features:
- Chamber: 5.56
- Length: 12.5″
- 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: Carbine
- Weight: 22oz
- M4 Barrel Extension
- HP and MPI Tested
| Weight | 22 oz |
|---|---|
| Dimensions | 24.5 × 5 × 5 in |
| Barrel Finish | Other |
| Barrel Profile | M4 |
| Gas System Length | Carbine |
| Barrel Length | 12.5 |
| Cartridge Compatibility | 5.56 NATO |
| Twist Rate | 1-7 |
| BCG / Charging Handle | Not Included |
| UPC | 815421028638 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
