Aero Precision M4E1 5.56mm 14.5" Gamma 556 SL w/ 12" Atlas R-One URG
- DESCRIPTION
- REVIEWS
Inter-Store Transfer
If this item is out of stock at your local RifleGear but available at our other location, no problem. Just place your order and select In-Store Pickup as the shipping method. As long as the item is legal in your location, we will transfer the item for you. You will be notified by email once your item has arrived at the destination.
The Aero Precision M4E1 complete upper receiver includes an M4E1 Threaded upper receiver, ATLAS R-ONE handguard, 14.5" 5.56 Mid-Length barrel, low profile gas block and VG6 Gamma 556 SL muzzle device(pin/welded).
*This upper receiver group DOES NOT include a BCG or charging handle
M4E1 Threaded Upper Receiver Features: |
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New enhanced forging that gives the upper receiver a "billet look" |
New picatinny profile that blends seamlessly with Aero Precision 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: |
Full top rail |
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 |
14.5" 5.56 Mid-Length Barrel Features: |
Chamber: 5.56 |
Length: 14.5" |
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 Port: .0785 |
Gas System Length: Mid |
Weight: 26oz |
M4 Barrel Extension |
HP and MPI Tested |