AR15 M4E1 Threaded Upper ATLAS R-ONE Combo Set

AR15 M4E1 Threaded Upper ATLAS R-ONE Combo Set


New Product by Aero Precision
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SKU: APPG700601


AR15 M4E1 Threaded Upper ATLAS R-ONE Combo Set

Each ATLAS R-ONE Combo Set Includes

  • M4E1 Threaded Assembled Upper Reciever
  • 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


  • 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

ATLAS S-ONE Handguard Combo Sets


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

Product Information

Item# APPG700601
Manufacturer: Aero Precision
Platform: AR15 – Multi caliber
Finish: Anodized Black | FDE
MSRP: Starting at $238.48

Additional information

Weight1 oz

Aero Precision




Black, FDE

Part Type

Handguard, Upper Receiver Parts

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