Aero Precision M4E1 Threaded AR-15 Barreled Upper Receiver .300 BLK Pistol Length ATLAS S-ONE 16"
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
- 16" .300 Blackout CMV Barrel
- Low Profile Gas Block and Pistol Length Gas Tube
- 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 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 Features:
- Chamber: .300 Blackout
- Length: 16"
- Material: 4150 Chome Moly Vanadium
- Finish: QPQ Corrosion Resistant Finish
- Gas System Length: Pistol
- Gas Block Journal: .750"
- Twist Rate: 1:7 Inches
- Muzzle: 5/8x24 Threaded
- Weight: 29oz
- Other; M4 Feed Ramp Extension, HP and MPI Tested, Standard A2 Flash Hider
By purchasing Aero Precision M4E1 Threaded AR-15 Barreled Upper Receiver .300 BLK Pistol Length ATLAS S-ONE 16" from our online store, you are guaranteed to receive a high-quality item. We work with trusted brands to offer shooting and hunting enthusiasts, both amateur and professional, quality products at a reasonable price. Choosing to buy from us means opting for quality and practicality
