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M4E1 Threaded  Complete Upper WITH BCG/CH, 16" 5.56 Mid, 15" M-LOK ATLAS R-ONE

The included ATLAS R-ONE Handguard is 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 Upper Receiver

15" ATLAS R-ONE Handguard

16" 5.56 CMV Barrel

Low Profile Gas Block and Mid-Length Gas Tube

Port Door Assembly

A2 Flash Hider



M4E1 Threaded Upper Receiver Features:


Custom enhanced forging that gives the upper receiver a "billet look" while maintaining the structural integrity of a forged part.

Picatinny profile that blends seamlessly with our Enhanced and ATLAS Series Handguards

M4 Feedramps

.250 takedown pin holes


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

1.3" Inside diameter

1.5" Outside diameter

Compatible with mil-spec AR15 upper receivers and barrels

MLOK attachment points


16" 5.56 Barrel Features:

5.56 NATO 16" Barrel, 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

M4E1 Threaded Complete Upper WITH BCG/CH, 16" 5.56 Mid, 15" M-LOK ATLAS R-ONE

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