Aero Precision ATLAS R-ONE M-LOK AR-15 Handguard - Black - 15"

Manufactured by Aero Precision
SKU: APRA500705A
MPN: APRA500705A
Manufactured by Aero Precision
4 Reviews

In Stock

Standard orders will ship out within 1 business day if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.

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Note: The Atlas handguards are not compatible with the Aero Precision M4E1 enhanced upper receiver. They are compatible with the M4E1 threaded upper receiver.

If you want to build a lightweight AR-15 without sacrificing durability or functionality, the Atlas R-ONE handguard is one component you want to look at. It is machined from 6061-T6 aluminum and features a proprietary attachment system that ensures your rail is locked down tight and will not rotate. ATLAS stands for Aero Taper Lock Attachment System, which features two mirrored and tapered locking nuts that evenly distribute clamping pressure on the custom machined barrel nut. The ratcheting detent system ensures that it stays locked down no matter what. This Aero Precision handguard has the same slim profile as the S-ONE series of free float handguards except that it has a full length picatinny top rail in case you need the extra rail space for optics or other attachments. The inside diameter measures only 1.3” but is still compatible with most low-profile gas blocks. Another feature of this free float handguard is the seamless integration with the Aero M4E1 threaded upper receivers. Not only does it perfectly match up to the M4E1 but it is also compatible with Mil-Spec receivers, so you can easily customize your build how you see fit.

  • 15” with full length picatinny top rail
  • Hardcoat anodized matte black finish
  • Free float design with proprietary barrel nut and locking system
  • M-LOK attachment points
  • QD sling socket at 3, 6, and 9 o’clock positions
  • Compatible with low-profile gas blocks
  • 1.3” Inner diameter
  • Includes barrel nut and all mounting hardware

The Atlas R-ONE also comes in multiple different lengths, finishes, and attachment systems like M-LOK or KeyMod. This specific rail is 15 inches in length allowing it to completely cover rifle length gas systems and allow you to place lights further out on your rail. It also has a durable hardcoat anodized matte black finish to match your receiver. Along the sides and bottom are M-LOK attachment points, so you can customize exactly where you want rail sections for lights, grips or bipods. Another benefit of the M-LOK system is the quick detach accessory options that allow you to add or remove accessories with the press of a button.

Aero Precision takes some of the most state of the art manufacturing techniques and equipment derived from their work in the aerospace industry and applies it to their products in the firearms industry. They have utilized their knowledge from years of building aircraft components to design and engineer AR-15 handguards, receiver sets, scope mounts, and more. They treat every product as if it were a precision flying machine and adhere to strict quality standards to ensure law enforcement, military, and civilian customers receive a product they can rely on.
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Accessory AttachmentM-LOK
BrandAero Precision
FinishHardcoat Anodized
Gas System LengthExtended Rifle
Handguard Length15 in
Inner Diameter1.3 in.
MaterialAluminum - 6061-T6
Weight9.07 oz.
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

4 reviews

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by -

very solid rail slim feels good in hand would buy again.

Could the happier

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Previously had a Troy (cheese grader) Alpha which I didn’t like gripping. This Altas feels great and has a much better barrel nut/forend locking system too!

Consistent Quality

by -

I've used Aero Precision components on almost all of my builds because of their consistent high quality. Their hand guards are no exception.

Best available

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You simple can't find a better handguard, IMO. It is thin for a more versatile grip. It has the ability to add as many rails as you need. It's manufactured and backed by the leader in the industry.