- M4E1 Threaded Assembled Upper Receiver
- ATLAS R-ONE Handguard of choice
- Handguard Mounting Hardware
ATLAS R-ONE Handguard
The ATLAS R-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the R-ONE line of handguards are designed with size and weight in mind, providing the perfect handguard for your lightweight build. 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.
Available in KeyMod™ and M-LOK® profiles with 12” and 15” options (7” and 9” options coming soon).
- 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
M4E1 Threaded Assembled Upper Receiver
The M4E1 Threaded Assembled Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075-T6 Aluminum, precision machined to work with all mil-spec AR15 parts and includes the port door and forward assist pre-installed. Get the billet look without paying the billet price!
M4E1 Threaded 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
MPN#: APPG700601

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Comments (4)

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Yea nothing for the advertised price.

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Aren't those S-One hand guards in the pic

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The first picture is. The others aren't. But I am getting $224 as the lowest price for the R-One combo

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The as low as 193$ is most likely for the ar15 upper with the shortest keymod version of the guard since keymod is being phased out. Also its likely not in stock.

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