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

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Aero Precision M4E1 Threaded Assembled Upper Receiver for AR-15

Aero Precision M4E1 Threaded Assembled Upper Receiver for AR-15 - Black


Aero Precision M4E1 Threaded Assembled Upper Receiver for AR-15

Aero Precision M4E1 Threaded Assembled Upper Receiver for AR-15 - FDE


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 position, with a full-length picatinny rail at the 12 o’clock.  The slim design makes it incredibly comfortable in the hand, with a perfect aesthetic to match with 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 very end of the handguard’s top rail.  No need to guess if one size will be the perfect fit for your barrel.  And 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, making the installation secure 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.


  • 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 AR-15 upper receivers, M4E1 threaded upper receivers, and EPC-9 threaded upper receivers.

Note: The ATLAS Handguards are NOT compatible with the M4E1 Enhanced Upper Receiver.  Use 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″

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Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Aero Precision Warranty

If for any reason you have a warranty issue with one of our products, please contact us at 253-272-8188.

Please describe your situation, include your name and order number or transaction id. One of our technical specialists will then review your claim and contact you within 3-5 business days.

If you have images to send, please email them to

Damaged Items

In regards to claims dealing with damaged or blemished products, we ask that you create a Help Desk Ticket on your My Account page. If you don’t have an account with us, please go to the Contact Us page and fill out the form for review within 72 hours upon receiving the shipment.

If you have images to send, please email them to

Failed Background Check

There will be a 30% restocking fee on all lower receivers returned because of failed background checks.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 16 reviews
Mario Lugo
Looking good product

My new build looks beautiful

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Atlas R-One Handguard (FDE)

Love my new purchase along with my customer service experience with AT3 Tactical. Fit and finish was an exact match with my lower. Huge thank you to AT3 tactical. You were the only company I could find the “Atlas R-One handhuard (FDE)” after searching for weeks.

Thank you for your review! We are so happy to hear that you love your new Aero Precision ATLAS R-ONE handguard in FDE. We strive to provide the best customer service and are glad to hear that your experience with us was positive. We are always here to help and we appreciate your support. Thank you for choosing AT3 Tactical!

Jeff Kashat
Slim and sleek handguard in awesome color

Very happy to have found this in stock. Exactly what I wanted. Just an fyi, won’t clear superlative arms adjustable gas block. Otherwise, perfect!

Josh L.
Great Handguard

Aero has really stepped up the game here. This is arguably the best handguard for the price. Also, thank you AT3 for keeping a good stock of products.

Thank you for your feedback! We're glad to see that our handguard is meeting your expectations.

Mike S.
Great Quality

The rail is of great quality and matches the OD green anodizing color of my Aero upper and buffer tube. I was very pleased to see that it does indeed match and will look great on the completed rifle. It was nicely packaged with the hardware neatly contained and organized as well. Thank You!

Thank you for your review! We're glad to hear that you're happy with the quality of the Atlas R-One M-LOK Handguard for AR-15 - Full Top Rail.