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Questions & Answers
Will this handguard fit the Aero enhanced M5 upper? Expert Answer

Yes, this should work just fine.

by Patrick, Gear Expert, September 15, 2021
Do you have to time the barrel nut or self timing Manufacturer Answer

You will need to use the included shims to time accordingly.

by Aero Precision USA, Manufacturer, September 20, 2022
Customer Reviews
Helpful Positive Review
Light and good quality by Jon, Verified Owner, April 10, 2019
It’s an excellent rail with a real cool mounting system. Decent sized Internal diameter and a good fit in the hand. I highly recommend for a decent lightweight option that’s not too expensive. Aero quality
4/5 found this helpful
Helpful Negative Review
The mounting hardware was not complete or correct by asqrdh, Verified Owner, November 21, 2020
Not the correct barrel nut. Only 1 shim (aero precision website lists multiples). Tool (shown and described on aero precision website) not included. The packaging didn’t look new and I should have opened it when it arrived. Started assembly finally...
Read More...
6/9 found this helpful
Most Recent Reviews
Very Fast shipping Compared to Aero Precision Shipping by Jonathon, Verified Owner, November 10, 2025
I was very pleased with the item and this company actually ships when it shows in stock unlike AP
Most Recent Reviews
AR10 handgaurd by Jeff, Verified Owner, November 8, 2025
Fit Ar10 perfect, installation was easy, lightweight and quality material
Most Recent Reviews
high quality by TB, Verified Owner, September 21, 2025
Handguard was easy to install and solid. Happy with the purchase.
Most Recent Reviews
I wish this wasn't on the AR15 list, waiting for my return label. I will try to pay more attention next time.
Read All 23 Reviews
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Product Info for Aero Precision M5 ATLAS S-ONE M-LOK Handguard

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.image

ATLAS

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.

WARNING: California`s Proposition 65

Specifications for Aero Precision M5 ATLAS S-ONE M-LOK Handguard:

Manufacturer: Aero Precision
Gun Make: AR Platform
Gun Model: M5
Gun Type: Rifle
Handguard Type: Free-Float
Handguard Style: Hybrid Rail
Outer Diameter: 1.5 in
Mount Type: M-LOK

Features of Aero Precision M5 ATLAS S-ONE M-LOK Handguard

  • 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
  • Compatible with AR308 upper receivers and barrels
  • NOT Compatible with M5E1 Enhanced Upper Receivers

Package Contents:

  • Aero Precision M5 ATLAS S-ONE M-LOK Handguard

Aero Precision M5 ATLAS S-ONE M-LOK Handguard Orderable Models

List of Orderable Models

  • Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 12 inch, 6061-T6 Aluminum, Anodized, Black, APRA538104A , MPN: APRA538104A , UPC: 840014611492 , Code: 29D-HZ-M5AS1ML-APRA538104A
  • Aero Precision M5 ATLAS S-ONE M-LOK Handguard, 12.7in, OD Green, APRA538285A , MPN: APRA538285A , UPC: 840014622498 , Code: 29D-HZ-M5AS1ML-APRA538285A
  • Aero Precision M5 ATLAS S-ONE M-LOK Handguard, 12.7in, Kodiak Brown, APRA538286A , MPN: APRA538286A , UPC: 840014622504 , Code: 29D-HZ-M5AS1ML-APRA538286A
  • Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 12 inch, 6061-T6 Aluminum, Cerakote, FDE, APRA538114A , MPN: APRA538114A , UPC: 840014611522 , Code: 29D-HZ-M5AS1ML-APRA538114A
  • Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 15 inch, 6061-T6 Aluminum, Anodized, Black, APRA538105A , MPN: APRA538105A , UPC: 840014611508 , Code: 29D-HZ-M5AS1ML-APRA538105A
  • Aero Precision M5 ATLAS S-ONE M-LOK Handguard, M5, 15in, Slim Profile, Kodiak Brown, APRA538217A , MPN: APRA538217A , UPC: 840014618057 , Code: 29D-HZ-M5AS1ML-APRA538217A
  • Aero Precision M5 ATLAS S-ONE M-LOK Handguard, M5, 15in, Slim Profile, OD Green, APRA538172A , MPN: APRA538172A , UPC: 840014618040 , Code: 29D-HZ-M5AS1ML-APRA538172A
  • Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 15 inch, 6061-T6 Aluminum, Cerakote, FDE, APRA538115A , MPN: APRA538115A , UPC: 840014611539 , Code: 29D-HZ-M5AS1ML-APRA538115A
  • Aero Precision ATLAS S-ONE M-LOK Handguard, M5, 15 inch, Cerakote, Sniper Grey, APRA538218A , MPN: APRA538218A , UPC: 840014618064 , Code: 29D-HZ-M5AS1ML-APRA538218A
  • DEMO, Aero Precision ATLAS S-ONE M-LOK Handguard, M5, 15 inch, Cerakote, OD Green, APRA538219A , MPN: APRA538219A-DEMO , Code: 29D-HZ-M5AS1ML-APRA538219A-DEMO
  • Aero Precision ATLAS S-ONE M-LOK Handguard, M5, 15 inch, Cerakote, OD Green, APRA538219A , MPN: APRA538219A , UPC: 840014618194 , Code: 29D-HZ-M5AS1ML-APRA538219A

Aero Precision M5 ATLAS S-ONE M-LOK Handguard Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Aero Precision M5 ATLAS S-ONE M-LOK Handguard, 12.7in, Kodiak Brown, APRA538286A , MPN: APRA538286A-EDEMO , Code: 29D-HZ-M5AS1ML-APRA538286A-EDEMO-RE-B
  • DEMO, Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 15 inch, 6061-T6 Aluminum, Anodized, Black, APRA538105A , MPN: APRA538105A-DEMO , Code: 29D-HZ-M5AS1ML-APRA538105A-DEMO
  • USED, Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 12 inch, 6061-T6 Aluminum, Anodized, Black, APRA538104A , MPN: APRA538104A-EDEMO , Code: 29D-HZ-M5AS1ML-APRA538104A-EDEMO-WP-C
  • USED, Aero Precision M5 ATLAS S-ONE M-LOK Handguard, 12.7in, Kodiak Brown, APRA538286A , MPN: APRA538286A-EDEMO , Code: 29D-HZ-M5AS1ML-APRA538286A-EDEMO-OT-C
  • DEMO, Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 12 inch, 6061-T6 Aluminum, Anodized, Black, APRA538104A , MPN: APRA538104A-DEMO , Code: 29D-HZ-M5AS1ML-APRA538104A-DEMO
  • USED Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 15 inch, 6061-T6 Aluminum, Cerakote, FDE, APRA538115A, EDEMO4, Condition Like New, Inspect and Rebox , MPN: APRA538115A-EDEMO4 , Code: 29D-HZ-M5AS1ML-APRA538115A-EDEMO-RE-A
  • USED, Aero Precision M5 ATLAS S-ONE M-LOK Handguard, M5, 15in, Slim Profile, Kodiak Brown, APRA538217A , MPN: APRA538217A-EDEMO , Code: 29D-HZ-M5AS1ML-APRA538217A-EDEMO-SC-C
  • USED, Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 15 inch, 6061-T6 Aluminum, Cerakote, FDE, APRA538115A , MPN: APRA538115A-EDEMO , Code: 29D-HZ-M5AS1ML-APRA538115A-EDEMO-SC-C
  • DEMO, Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 12 inch, 6061-T6 Aluminum, Cerakote, FDE, APRA538114A , MPN: APRA538114A-DEMO , Code: 29D-HZ-M5AS1ML-APRA538114A-DEMO
  • USED Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 15 inch, 6061-T6 Aluminum, Cerakote, FDE, APRA538115A, EDEMO5, Good, Inspect and Rebox , MPN: APRA538115A-EDEMO5 , Code: 29D-HZ-M5AS1ML-APRA538115A-EDEMO-RE-C
  • DEMO, Aero Precision M5 ATLAS S-ONE M-LOK Handguard, M5, 15in, Slim Profile, OD Green, APRA538172A , MPN: APRA538172A-DEMO , Code: 29D-HZ-M5AS1ML-APRA538172A-DEMO
  • USED Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 15 inch, 6061-T6 Aluminum, Cerakote, FDE, APRA538115A, EDEMO6, Excellent, Inspect and Rebox , MPN: APRA538115A-EDEMO6 , Code: 29D-HZ-M5AS1ML-APRA538115A-EDEMO-RE-B
  • DEMO, Aero Precision ATLAS S-ONE Handguard, M-LOK, M5, 15 inch, 6061-T6 Aluminum, Cerakote, FDE, APRA538115A , MPN: APRA538115A-DEMO , Code: 29D-HZ-M5AS1ML-APRA538115A-DEMO
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