Aero Precision AR15 Atlas S-One 7″ M-LOK Handguard – Black

(5 customer reviews)

$119.99 $110.49

2 in stock


The ATLAS S-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the S-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 with 9″, 12” and 15” options (7”  options coming soon).


The new Aero Taper Lock Attachment System (ATLAS) is both functional and aesthetically pleasing. It features 2 mirrored tapered locking nuts that provide evenly distributed clamping pressure across a custom engineered barrel nut with use of a turnbuckle screw. A ratcheting detent further secures the design while providing positive registration during installation. By design, the even pressure of the ATLAS system avoids distortion of the handguard often seen with current applications during installation.

All hardware mounting parts are included with the purchase of a S-ONE Handguard.

Lightweight By Design

  • KeyMod Handguard Weights: 7” – 4.76 oz, 9” – 5.34 oz, 12” – 6.81 oz, 15” – 7.69 oz
  • M-LOK Handguard Weights: 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
  • Eliminated center of top rail for weight reduction
  • 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 mil-spec AR15 upper receivers and barrels

The ATLAS S-ONE Handguards are designed to match seamlessly with the custom designed top rail of our AR15 Gen 2 Upper.

Additional information

Weight 1.25 lbs
Dimensions 18 × 4 × 4 in
Handguard Length and Type

Enhanced 7" M-LOK, Enhanced 9" M-LOK, Enhanced 12" M-LOK, Enhanced 15" M-LOK

ADD BAR Barrel Nut

NO, Yes

5 reviews for Aero Precision AR15 Atlas S-One 7″ M-LOK Handguard – Black

  1. Jason W. (verified owner)

    Everything is great as always. Perfect fit great price.

  2. Trevor (verified owner)

    Awesome handguard came 2 days early, will order again.

  3. Ryan C. (verified owner)

    Excellent product, fast shipping

  4. Ellen (verified owner)

    Product packed well for shipping and arrived on time.

  5. Lucas F. (verified owner)

    The Aero ATLAS S-One handguard is great. Sturdy, comfy, easy to install, and VERY good-looking. I am, unfortunately, an idiot and didn’t take into account the fact that my billet upper receiver is too fat for the handguard. It has tabs on the sides that are meant to slide over the sides of the upper to keep the handguard from rotating. Oh well, live & learn. Gonna keep it and use it on a future build (for which I’ll be getting a compatible upper).

    B. King’s Firearms exceeded expectations, too. I ordered this handguard at 10:20am and it shipped 1:05pm the same day. The tracking website that I monitored initially said it would get here in four days, but it actually got here in two.

    I’ll make sure to come back to B. King’s again.

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