Description

Includes:

M4E1 Threaded Assembled Upper Receiver

ATLAS R-ONE Handguard of choice

16″ 5.56 CMV Barrel

Low Profile Gas Block and Mid-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

Learn More about our NEW ATLAS Handguards

16″ 5.56 Mid-Length Barrel Features:

5.56 NATO 16″ Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled

.750 gas block journal

Mid-length gas system, .0785 gas port

M4 Feed Ramp Extension

HP and MPI tested

Standard A2 flash hider