Stock Status: Aero Precision M4E1 Barreled Upper, 16" 5.56 Mid-Length Barrel, 15" M-LOK ATLAS S-ONE
This assembled upper includes the ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Aero's 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.
Click here for Charging Handles
Click here for Bolt Carrier Groups
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
Click here for Bolt Carrier Groups
Includes:
- M4E1 threaded upper receiver
- Forged 7075-T6 aluminum
- Assembled forward assist and dust cover
- 15” ATLAS S-ONE M-LOK handguard
- Hardcoat anodized
- 16” 5.56 NATO barrel
- Machined from Chrome Moly Vanadium
- Mid-length gas system
- 1:7 twist rate
- Threaded 1/2x28
- A2 flash hider
- Salt Bath Nitride finished
This upper does not include BCG or Charging Handle.
ATLAS S-ONE Handguard Features:
- Front and rear picatinny rail
- Eliminated center of top rail for weight reduction
- Indexing grooves in 12:00 position for positive grip control
- 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
| Barrel | Specifications |
|---|---|
| Caliber | 5.56 |
| Length | 16" |
| Material | 4150 Chrome Moly Vanadium |
| Profile | M4 |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | Carbine |
| Gas Block Journal | .750" |
| Dimpled? | No |
| Twist Rate | 1:7 |
| Muzzle Thread | 1/2x28 TPI |
| Weight | 27.2oz |
| Barrel Extension | M4 Feed Ramps |
| Target Crown | 11 Degree |
- Maximum Purchase:
- 5 units
