Aero Precision M4E1-T Complete Upper, 10.5" 5.56 Barrel, 9" M-LOK ATLAS S-ONE HG - Anodized - APAR700302M2
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
- 10.5″ 5.56 Carbine Length CMV Barrel
- Low Profile Gas Block and Carbine 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 AR-15 upper receivers and barrels
10.5″ 5.56 Carbine Length Barrel Features:
- Chamber: 5.56
- Length: 10.5″
- 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: 17.25 oz
- M4 Barrel Extension
- HP and MPI Tested
| Weight | 17.248 oz |
|---|---|
| Dimensions | 22.5 × 5 × 5 in |
| Barrel Finish | Nitride / Melonite |
| Barrel Profile | Government / SOCOM |
| Gas System Length | Carbine |
| Barrel Length | 10.5 |
| Cartridge Compatibility | 5.56 NATO |
| Twist Rate | 1-7 |
| BCG / Charging Handle | Not Included |
| MPN | APAR700302M2 |
| UPC | APAR700302M2 |
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
PR
First Build
I’m impressed with the quality. Tested and works flawless!!
USGreat Upper
I’m enjoying this upper from Aero Precision on my pistol build. Great quality for the price.
USGreat price, great quality
My order was shipped next day and showed up before the end of the week. There were no problems and i knew where my order was the whole way till it was at my door. The upper receiver was in perfect condition, and shoots great.This model with the middle pic rails taken out is perfect for light weight build since it only takes out the rails the most dont use. I was worried it might look a little goofy but it looks especially slick and if you put an SI link foregrip on it you can have a very solid a comfortable "C" grip on the rifle. Aero makes a solid product and ARdiscounts will be my go to to in the future
USAwesome upper
Haven’t shot it yet. But the fit and finish of the upper feel and look great.
US
Great
Great upper. Assembled well, have not shot it. But fit well. And item sells out quick!
