Aero Precision 10" .300 BLK M4E1 ATLAS-S Complete Upper - Black
Out of stock
Aero Precision APAR700302M4: This complete upper includes Aero Precision’s 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. Aero Precision’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. This complete upper does not include BCG or Charging Handle.
Includes:
- M4E1 Threaded Assembled Upper Receiver
- 9″ ATLAS S-ONE Handguard
- 10″ .300 Blackout CMV Barrel
- Low Profile Gas Block and Pistol Length Gas Tube
- Product comes assembled
- 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
10″ .300 Blackout Barrel Features:
- Length: 10″
- Twist: 1 in 7
- Muzzle: 5/8×24 Threaded
- Material: 4150 Crome Moly Vanadium
- Finish: QPQ corrosion resistant finish both inside and out
- Gas Block: .750
- Gas Port: .0935
- Gas System Length: Pistol
- Weight: 21oz
- M4 Barrel Extension
- HP and MPI Tested
| Weight | 20.8 oz |
|---|---|
| Dimensions | 22.5 × 5 × 5 in |
| Barrel Finish | Nitride / Melonite |
| Barrel Profile | Government / SOCOM |
| Gas System Length | Pistol |
| Barrel Length | 10.5 |
| Cartridge Compatibility | 300 BLK |
| Twist Rate | 1-7 |
| BCG / Charging Handle | Not Included |
| UPC | 840014601745 |
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
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Quality upper, great price, best value
Aero precision products definitely are solid. The finish quality and texture is very nice. The ATLAS-S is slim and comfortable for gripping. I mated it to the lower and the fitment is top night, no wobble whatsoever. It came packaged in a nice box too. I don't think I could have found a better upper for the price point. Buying from AR15DISCOUNTS was great; they price matched Brownells then shipped it quickly. Thank you
