M4E1 Threaded Complete Upper, 16″ .300 Blackout Barrel, 15″ M-LOK ATLAS S-ONE Handguard – Anodized Black

Original price was: $520.00.Current price is: $420.00.

This complete upper includes our new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. 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.

M4E1 Threaded Assembled Upper Receiver
ATLAS R-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.

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 R-ONE Handguard Features:

Full top picatinny rail for optional attachments
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: 5/8×24 Threaded
Weight: 29oz
Other; M4 Feed Ramp Extension, HP and MPI Tested, Standard A2 Flash Hider

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