Aero Precision ATLAS S-ONE M-LOK Handguard - Black

SKU# 2045 | by Aero Precision
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Meet the newest lightweight AR-15 handguard from Aero Precision. The ATLAS S-ONE is designed for lightweight and minimalist AR15 builds. Featuring the unique ATLAS mounting system that is stronger than any other handguard system on the market, Aero Precision brings a new level of quality and accuracy to your AR build. 

Carefully machined from 6061-T6 aluminum, and featuring M-LOK attachment points, S-ONE handguards were designed with custom lightweight builds in mind. Using a patent pending attachment system, S-ONE series handguards offer a monolithic like attachment to your upper, while preserving a slim profile. S-ONE handguards are the quickest, and easiest way to modernize your upper or are a great choice for your lightweight build!


The brand new Aero Taper Lock Attachment System (ATLAS) is both pleasant to look at and highly functional. ATLAS uses two mirrored tapered locking nuts which evenly distribute clamping pressure over a custom designed barrel nut through the use of a turnbuckle screw. This prevents handguard distortion as can happen with many handguards during installation.

All hardware mounting parts are included with the purchase of an S-ONE handguard.

Lightweight By Design

  • 7" 4.86 oz
  • 9" 5.47 oz
  • 12" 7.00 oz
  • 15" 7.95 oz
  • Mounting Hardware Weight: 4.72 oz (same across all S-ONE handguard options)


  • Front and rear Picatinny rail
  • Weight reduction by removing center Picatinny rail
  • Indexing grooves in 12:00 position for positive grip control
  • 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 popular suppressors
  • Compatible with mil-spec AR-15 upper receivers and barrels
  • Made in the USA!

The ATLAS S-ONE Handguards are designed to match seamlessly with the custom designed top rail of the AR-15 Gen 2 Upper. Designed to be compatible with mil-spec AR-15 upper receivers. May not be compatible with billet upper receivers.

ATLAS S-ONE handguards seamlessly match with the custom configured top rail of Aero Precision's Gen 2 AR-15 upper. Compatible with all mil-spec AR-15 uppers, but may not be compatible with all billet uppers.

Please note: The ATLAS S-ONE handguards are NOT compatible with the M4E1 enhanced upper receiver.


About Aero Precision

Located in the middle of the Puget Sound aerospace industry, Aero Precision has been a leader in premium quality AR-15 rifles and parts for decades. 

Customer Reviews

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Stephen M.
United States

Nice handguard

Lightweight, easy install, nice look. No complaints.

Stephen M. verified customer review of Aero Precision ATLAS S-ONE M-LOK Handguard - Black
George H.
United States

Solid light weight handguard

I put this on a M4E1 threaded upper. Absolutely a perfect fit. Nice light weight option for this build.

George H. verified customer review of Aero Precision ATLAS S-ONE M-LOK Handguard - Black
Julian D.
United States

Atlas S Mlok handguard - This is what I was looking for.

I have been using using the Aero quantum setup, and wanted to get a slimmer and lighter handguard. I have now installed this on a newly purchased m4e1 threaded upper. What a huge difference this has made in handling the 16" barrel now, and it feels rock solid. Very happy with this purchase from AR15 Discounts. Pricing and shipping were just great!

Dale C.
United States

Best price I could find,

Best price I could find, very fast shipping, and great customer service

Dale C. verified customer review of Aero Precision ATLAS S-ONE M-LOK Handguard - Black
Keith M.
United States

Awesome hand guard

Easy to install system, high quality parts, & very lightweight.

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