Aero Precision AR15 Atlas S-One 15″ M-LOK Handguard – Black

(22 customer reviews)

$159.99 $105.00

Out of stock

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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 12” and 15” options (7” and 9” 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

22 reviews for Aero Precision AR15 Atlas S-One 15″ M-LOK Handguard – Black

  1. Anonymous (verified owner)

    Handguard came well packaged, exactly as advertised and unblemished at an amazing price. VERY slim handguard so choose your gas block wisely. Thanks to B Kings for the fast shipping, will be using you folks in the future!

  2. cp (verified owner)

    Best hand-guard on the market right now. Keeps everything light and ridged

  3. Robert Green (verified owner)

    This handguard is everything I expected. Converted from carbine with A2 sight to this. Completely changed my rifle aesthetics and
    really streamlined the look. I love it. Easy to install, for the most part. The screw tightened works awesome but you gotta get it just right to secure handgurd. I searched several sites for at least a week and NOONE could beat B. King’s price. Packaging was better than a lot of other sites I’ve used aND my guard was was perfect. Thanks B. King.

  4. Anonymous (verified owner)

    Great price, great communication, very pleased with this purchase

  5. Andrew (verified owner)

    Love this handguard. Thought it would be too skinny but fits great in your hand.

  6. Steven Cooksey (verified owner)

    Product shipped fast and delivered with no damage. Its nice to see a vendor who takes the time to ensure something is packed properly. Will be buying more from B. Kings!!!!!

  7. phillip H. (verified owner)

    Best price online

  8. Anonymous (verified owner)

    This handgaurd feels great, nice and slim and about as lightweight as you could hope for. The turnbuckle locking system is sleek and easy to use. Although the barrel nut needs to be timed, the provided tools and shims make it easy to accomplish. I’m always happy to shop with Blake and he also had the lowest price in stock at the time, bonus!

  9. Nick K. (verified owner)

    Great products, great prices, and fast shipping!

  10. Forrest (verified owner)

    Great quality Handguard lightweight very ergonomic and looks good too. The finish is even, no tooling marks. The barrel nut is a little heavy for a lightweight but not bad. Fits well with the M4E1 Aero upper. One of my favorite Handguards I have. Lighten the barrel but a bit and it would even be better but we are really nit picking on that. Well done on the shopping and service too!

  11. Robert C. (verified owner)

    Awesome handguard! Machining is top notch and it is really lightweight. Fast shipping. Satisfied customer all around.

  12. Anonymous (verified owner)

    The price was great and the service perfect. Delivered rapidly.

  13. Anonymous (verified owner)

    Item shipped quick, was packaged well and arrived in great shape. Will definitely do business with B. King’s again!

  14. douglas hall (verified owner)

    the service at BKings is always top notch

  15. Kevin Dyson (verified owner)

    Excellent service and fast delivery.

  16. Ancil (verified owner)

    Great price! Shipped quick! Will be buying more from B. King!

  17. chris redman (verified owner)

    High quality yet low weight piece. Matched aero upper very well and easy to install. Super quick delivery and in stock when other sites were out of these.

  18. Chris P. (verified owner)

    Great lightweight handguard!

  19. Ben (verified owner)

    I love this handguard.

  20. Anonymous (verified owner)

    Exactly as expected. Finish was perfect and so was fit.

  21. Daniel S. (verified owner)

    Fast shipping and quality product!

  22. Paul (verified owner)

    Fast shipping. Great product

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