Description
A phenomenal foundation for a battle rifle, this Aero Precision M4E1 Complete Upper features a 14.5" barrel and a 12" Atlas R-One handguard. This complete upper does not include the bolt carrier group (which can be found here) or charging handle (here).
Includes:
- M4E1 Threaded Assembled Upper Receiver
- ATLAS R-ONE Handguard of choice
- 14.5" 5.56 Mid-Length CMV Barrel -- Muzzle Device not pinned and welded, All NFA laws apply.
- Low Profile Gas Block and Mid Length Gas Tube
- Product comes assembled
M4E1 Upper 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
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
