Aero Precision ATLAS R-ONE M-LOK Handguard for AR-15 – Full Top Rail



Aero ATLAS Handguard with Full-Length Picatinny Rail

Lightweight by design, with a full complement of lengths for just about any AR-15 build.  The ATLAS R-ONE handguard features M-LOK slots at the 3, 6, and 9 o’clock positions, with a full-length Picatinny rail at the 12 o’clock.  The slim design makes it incredibly comfortable to hand, with a perfect aesthetic to match Aero’s M4E1 or EPC-9 upper receivers.

The various lengths available are the actual length, measured from where the handguard meets the top of your upper receiver to the end of the handguard’s top rail—no need to guess if one size will be the perfect fit for your barrel.  You can color match with Magpul Flat Dark Earth Cerakote or Sniper Grey Cerakote components.

Innovative Taper Lock Attachment

The ATLAS (Aero Taper Lock Attachment System) gives the handguard its name and a sleek attachment method.  The ATLAS uses 2 mirrored, tapered locking nuts that evenly distribute clamping force around the barrel nut with a turnbuckle screw.  The handguard also features a ratcheting detent, securing the installation and preventing distortion during installation.

This handguard includes all the necessary hardware for installation, plus timing shims to provide perfect alignment with your receiver and gas tube.  As with all of Aero Precision’s products, the ATLAS R-ONE sets the standard for quality across the industry, and it’s all made in the USA.


Note: The ATLAS Handguards are incompatible with the M4E1 Enhanced Upper ReceiverUse the M4E1 Threaded Upper for a fully matching look!


  • Material: 6061-T6 Aluminum
  • Finish
    • Anodized: Black, OD Green, Kodiak Brown
    • Cerakote: Magpul Flat Dark Earth, OD Green, or Sniper Grey
  • Handguard Weight
    • 4.8 inch: 3.9 oz
    • 7.3 inch: 5.22 oz
    • 9.3 inch: 6.03 oz
    • 10.3 inch: 6.7 oz
    • 12.7 inch: 8 oz
    • 15 inch: 9.07 oz
  • Hardware Weight: 1.9 oz
  • Inside Diameter: 1.3″
  • Outside Diameter: 1.5″

Additional information


Anodized Kodiak Brown, Anodized OD Green, Black, Burnt Bronze, Flat Dark Earth, Gray, OD Green


10.3 inch, 12.7 inch, 15 Inch, 16.6 inch, 4.8 inch, 7.3 inch, 9.3 inch

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