Aero Precision M4E1 Threaded Complete Upper, 7.5" 5.56 Barrel, 7" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR700301M0
In stock
This complete upper includes our new 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. 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
- ATLAS S-ONE Handguard of choice
- 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.
- 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 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
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
| Weight | 60 oz |
|---|---|
| Dimensions | 19.5 × 5 × 5 in |
| Barrel Finish | Nitride / Melonite |
| Barrel Profile | Medium |
| Gas System Length | Pistol |
| Barrel Length | 7.5 |
| Cartridge Compatibility | 5.56 NATO |
| Twist Rate | 1-7 |
| BCG / Charging Handle | Not Included |
| MPN | APAR700301M0 |
| UPC | APAR700301M0 |
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.
Customer Reviews
- Reviews
- Questions
US
Great upper
Very nice looking upper, light weight and great finish. This is my first aero product and I am extremely happy with it. I have several Palmetto state uppers and lowers but after purchasing this upper I'm sticking with aero products. Put 250 rounds through this upper without any problems.
USWill buy from again.
Love this barrel for my woman. The tiny diameter makes it about the same size as her AR-9. She wouldn't put down. Shipping was quick and easy. Price was good. Becoming one of my go to sites for pew pew stuff.
High Quality Upper
Very impressed with this upper, much higher quality than many others I have purchased.
Aero complete upper
The Aero complete upper with Atlas One handguard is awesome. High quality just like all my other Aero Precision parts. Very happy.
