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Questions & Answers
Would this hand guard work for an M&P15 ? Expert Answer

Yes, the Aero Precision AR15 ATLAS R-ONE M-LOK Handguard is compatible with the M&P-15. However, if your rifle uses a delta ring and handguard cap, they must be removed in order to install the handguard. You would also need to use a low-profile gas block.

by Ethan, Gear Expert, January 14, 2025
Would this be an ideal fit for my sig m400 Expert Answer

Yes, the Aero Precision AR15 ATLAS R-ONE M-LOK Handguard will be compatible with your Sig M400.

by Ethan, Gear Expert, July 19, 2024
Customer Reviews
Helpful Positive Review
You can have it 2 of 3 ways by Beans, Verified Owner, June 1, 2024
I run my small business bids using this simple concept. Good- Fast -Cheap. Pick two. In comparing apples to apples; this rail hit all the marks. As a quick disclaimer: If you want a stiff scout mount rail- go Geissele-M4 Federal. If you want a medi...
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3/3 found this helpful
Helpful Positive Review
Great hand guard but by KT, February 18, 2024
Great hand guard but if you are going to use it with the 5.5in barrel you will not be able to shoot with a suppressor. The barrel is 1/2in too short or the hand guard is 1/2 in too long.
1/1 found this helpful
Helpful Positive Review
Fits like a glove by John Reinan, March 21, 2023
I love the diameter of the hand hold. It also fits like a glove. Installation was very very easy. The color of the FDE matched everything perfectly for me. I can’t see a reason to spend more on a hand guard.
1/1 found this helpful
Helpful Positive Review
OD Green!! by Judson, Verified Owner, December 27, 2022
This is a beautiful ceracoat I'm never disappointed with Aero precision products, the price and quality is perfect. I love the locking mechanism this rail provides, So I now have 2 and will replace all my weapons with it.
1/1 found this helpful
Most Recent Reviews
Great Handguard by Matt P, Verified Owner, November 18, 2025
I have a few ATLAS handguards and I like how slim and light they are. Plenty of mounting options and have had no issues with lockup.
Most Recent Reviews
love my foregrip by Steven Parker, Verified Owner, September 27, 2025
It’s amazing and as it should be. And it paired right up to my aero upper like a glove and had no trouble mounting it whatsoever I love it
Read All 38 Reviews

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made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Aero Precision AR15 ATLAS R-ONE M-LOK Handguard

The ATLAS R-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the R-ONE line of AR Handguards & Forends 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.

ATLAS Handguards are designed to match seamlessly with our M4E1 Threaded Upper Receivers. Additionally, they are compatible with any Mil-Spec AR-15 upper receivers as well. However, they may not be compatible with billet upper receivers due to indexing tabs.

*All hardware mounting parts are included with the purchase of an ATLAS Handguard.

WARNING: California`s Proposition 65

Specifications for Aero Precision AR15 ATLAS R-ONE M-LOK Handguard:

Manufacturer: Aero Precision
Fabric/Material: 6061-T6 Aluminum
Gun Make: AR Platform
Gun Model: AR-15
Gun Type: Rifle
Handguard Type: Free-Float
Handguard Style: Hybrid Rail
Gas System Length: Rifle Length
Condition: New
Inner Diameter: 1.3 in
Outer Diameter: 1.5 in
Mount Type: M-LOK
Country of Origin: USA
Quantity: 1

Features of Aero Precision AR15 Atlas R-One M-LOK Handguard

  • Full top picatinny rail for optional attachments
  • Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
  • Compatible with low profile gas blocks
  • 1.3in Inside diameter
  • 1.5in Outside diameter
  • Compatible with mil-spec AR15 upper receivers and barrels
  • NOT Compatible with M4E1 Enhanced Upper Receivers

Package Contents:

  • Aero Precision AR15 Atlas R-One M-LOK Handguard

Aero Precision AR15 ATLAS R-ONE M-LOK Handguard Orderable Models

List of Orderable Models

  • Aero Precision AR15 Atlas R-One M-LOK Handguard, 16.6in, Anodized, APRA500706A , MPN: APRA500706A , UPC: 840014615841 , Code: 29D-HZ-ATR8HG-APRA500706A
  • Aero Precision AR15 15in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500705A , MPN: APRA500705A , UPC: 840014600090 , Code: 29D-HZ-ATR8HG-APRA500705A
  • Aero Precision Atlas R-One MLOK Handguard, AR15, Cerakote, OD Green, 15 in, APRA501402A , MPN: APRA501402A , UPC: 840014618019 , Code: 29D-HZ-ATR8HG-APRA501402A
  • Aero Precision AR15 ATLAS R-ONE M-LOK Handguard, 7.3in, Sniper Grey, APRA500761A , MPN: APRA500761A , UPC: 840014618774 , Code: 29D-HZ-ATR8HG-APRA500761A
  • Aero Precision Atlas R-One MLOK Handguard, AR15, Cerakote, OD Green, 10.3 in, APRA501398A , MPN: APRA501398A , UPC: 840014617968 , Code: 29D-HZ-ATR8HG-APRA501398A
  • Aero Precision AR15 7.3in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500701A , MPN: APRA500701A , UPC: 840014600069 , Code: 29D-HZ-ATR8HG-APRA500701A
  • Aero Precision Atlas R-One Handguard, AR-15, 7.3in, M-LOK, Anodized, OD Green, APRA501393A , MPN: APRA501393A , UPC: 840014617906 , Code: 29D-HZ-ATR8HG-APRA501393A
  • Aero Precision Atlas R-One Handguard, AR-15, 7.3in, M-LOK, Anodized, Brown, APRA501394A , MPN: APRA501394A , UPC: 840014617913 , Code: 29D-HZ-ATR8HG-APRA501394A
  • Aero Precision AR15 ATLAS R-ONE M-LOK Handguard, 10.3in, Sniper Grey, APRA501400A , MPN: APRA501400A , UPC: 840014617982 , Code: 29D-HZ-ATR8HG-APRA501400A
  • Aero Precision AR15 9.2in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500702A , MPN: APRA500702A , UPC: 840014600076 , Code: 29D-HZ-ATR8HG-APRA500702A
  • Aero Precision AR15 ATLAS R-ONE M-LOK Handguard, 9.3in, Kodiak Brown, APRA501603A , MPN: APRA501603A , UPC: 840014622443 , Code: 29D-HZ-ATR8HG-APRA501603A
  • Aero Precision AR15 ATLAS R-ONE M-LOK Handguard, 9.3in, OD Green, APRA501602A , MPN: APRA501602A , UPC: 840014622436 , Code: 29D-HZ-ATR8HG-APRA501602A
  • Aero Precision AR15 10.3in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500703A , MPN: APRA500703A , UPC: 840014615551 , Code: 29D-HZ-ATR8HG-APRA500703A
  • Aero Precision AR15 7.3in ATLAS R-ONE M-LOK Handguard, FDE, APRA500711A , MPN: APRA500711A , UPC: 840014600106 , Code: 29D-HZ-ATR8HG-APRA500711A
  • Aero Precision Atlas R-One Handguard, AR-15, 10.3in, M-LOK, Anodized, OD Green, APRA501396A , MPN: APRA501396A , UPC: 840014617944 , Code: 29D-HZ-ATR8HG-APRA501396A
  • Aero Precision Atlas R-One Handguard, AR-15, 10.3in, M-LOK, Anodized, Brown, APRA501397A , MPN: APRA501397A , UPC: 840014617951 , Code: 29D-HZ-ATR8HG-APRA501397A
  • Aero Precision AR15 12.6in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500704A , MPN: APRA500704A , UPC: 840014600083 , Code: 29D-HZ-ATR8HG-APRA500704A
  • Aero Precision AR15 9.2in ATLAS R-ONE M-LOK Handguard, FDE, APRA500712A , MPN: APRA500712A , UPC: 840014600113 , Code: 29D-HZ-ATR8HG-APRA500712A
  • Aero Precision AR15 ATLAS R-ONE M-LOK Handguard, 12.7in, OD Green, APRA501604A , MPN: APRA501604A , UPC: 840014622450 , Code: 29D-HZ-ATR8HG-APRA501604A
  • Aero Precision AR15 ATLAS R-ONE M-LOK Handguard, 12.7in, Kodiak Brown, APRA501605A , MPN: APRA501605A , UPC: 840014622467 , Code: 29D-HZ-ATR8HG-APRA501605A
  • Aero Precision AR15 ATLAS R-ONE M-LOK Handguard, 10.3in, FDE, APRA500713A , MPN: APRA500713A , UPC: 840014615834 , Code: 29D-HZ-ATR8HG-APRA500713A
  • Aero Precision Atlas R-One Handguard, AR-15, 15in, M-LOK, Anodized, Brown, APRA501401A , MPN: APRA501401A , UPC: 840014618002 , Code: 29D-HZ-ATR8HG-APRA501401A
  • Aero Precision Atlas R-One Handguard, AR-15, 15in, M-LOK, Anodized, OD Green, APRA501178A , MPN: APRA501178A , UPC: 840014617999 , Code: 29D-HZ-ATR8HG-APRA501178A
  • Aero Precision AR15 12.6in ATLAS R-ONE M-LOK Handguard, FDE, APRA500714A , MPN: APRA500714A , UPC: 840014600120 , Code: 29D-HZ-ATR8HG-APRA500714A
  • Aero Precision AR15 ATLAS R-ONE M-LOK Handguard, 15in, Sniper Grey, APRA500765A , MPN: APRA500765A , UPC: 840014618033 , Code: 29D-HZ-ATR8HG-APRA500765A
  • Aero Precision Atlas R-One MLOK Handguard, AR15, Cerakote, Burnt Bronze, 15 in, APRA500775A , MPN: APRA500775A , UPC: 840014618026 , Code: 29D-HZ-ATR8HG-APRA500775A

Aero Precision AR15 ATLAS R-ONE M-LOK Handguard Unavailable & Discontinued Models

List of Unorderable Models

  • Aero Precision AR15 4.8in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500708A , MPN: APRA500708A , UPC: 840014615544 , Code: 29D-HZ-ATR8HG-APRA500708A
  • USED Aero Precision Atlas R-One Handguard, AR-15, 10.3in, M-LOK, Anodized, Brown, APRA501397A, EDEMO1, Used, Condition Fair , MPN: APRA501397A-EDEMO1 , Code: 29D-HZ-ATR8HG-APRA501397A-EDEMO1
  • USED Aero Precision AR15 7.3in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500701A, EDEMO2, Used, Condition Fair , MPN: APRA500701A-EDEMO2 , Code: 29D-HZ-ATR8HG-APRA500701A-EDEMO2
  • USED Aero Precision AR15 12.6in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500704A, EDEMO3, Used, Condition Like New , MPN: APRA500704A-EDEMO3 , Code: 29D-HZ-ATR8HG-APRA500704A-EDEMO3
  • USED, Aero Precision AR15 15in ATLAS R-ONE M-LOK Handguard, FDE, APRA500715A , MPN: APRA500715A-EDEMO , Code: 29D-HZ-ATR8HG-APRA500715A-EDEMO-RE-A
  • Aero Precision Atlas R-One MLOK Handguard, AR15, Cerakote, OD Green, 7.3 in, APRA501395A , MPN: APRA501395A , UPC: 840014617920 , Code: 29D-HZ-ATR8HG-APRA501395A
  • Aero Precision Atlas R-One MLOK Handguard, AR15, Cerakote, Burnt Bronze, 10.3 in, APRA501399A , MPN: APRA501399A , UPC: 840014617975 , Code: 29D-HZ-ATR8HG-APRA501399A
  • USED, Aero Precision AR15 9.2in ATLAS R-ONE M-LOK Handguard, FDE, APRA500712A , MPN: APRA500712A-EDEMO , Code: 29D-HZ-ATR8HG-APRA500712A-EDEMO-IN-C
  • DEMO, Aero Precision AR15 9.2in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500702A , MPN: APRA500702A-DEMO , Code: 29D-HZ-ATR8HG-APRA500702A-DEMO
  • Aero Precision AR15 Atlas R-One M-LOK Handguard, 16.6in, FDE, APRA500716A , MPN: APRA500716A , UPC: 840014615858 , Code: 29D-HZ-ATR8HG-APRA500716A
  • Aero Precision AR15 15in ATLAS R-ONE M-LOK Handguard, FDE, APRA500715A , MPN: APRA500715A , UPC: 840014600137 , Code: 29D-HZ-ATR8HG-APRA500715A
  • DEMO, Aero Precision AR15 10.3in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500703A , MPN: APRA500703A-DEMO , Code: 29D-HZ-ATR8HG-APRA500703A-DEMO
  • USED, Aero Precision AR15 10.3in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500703A , MPN: APRA500703A-EDEMO , Code: 29D-HZ-ATR8HG-APRA500703A-EDEMO-SC-C
  • USED, Aero Precision AR15 10.3in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500703A , MPN: APRA500703A-EDEMO , Code: 29D-HZ-ATR8HG-APRA500703A-EDEMO-IN-C
  • USED, Aero Precision AR15 12.6in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500704A , MPN: APRA500704A-EDEMO , Code: 29D-HZ-ATR8HG-APRA500704A-EDEMO-RE-B
  • USED, Aero Precision AR15 ATLAS R-ONE M-LOK Handguard, 10.3in, FDE, APRA500713A , MPN: APRA500713A-EDEMO , Code: 29D-HZ-ATR8HG-APRA500713A-EDEMO-WP-D
  • USED, Aero Precision AR15 12.6in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500704A , MPN: APRA500704A-EDEMO , Code: 29D-HZ-ATR8HG-APRA500704A-EDEMO-IN-D
  • USED Aero Precision Atlas R-One MLOK Handguard, AR15, Cerakote, Burnt Bronze, 15 in, APRA500775A, EDEMO1, Used, Condition Fair , MPN: APRA500775A-EDEMO1 , Code: 29D-HZ-ATR8HG-APRA500775A-EDEMO1
  • DEMO, Aero Precision AR15 12.6in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500704A , MPN: APRA500704A-DEMO , Code: 29D-HZ-ATR8HG-APRA500704A-DEMO
  • Aero Precision AR15 4.8in ATLAS R-ONE M-LOK Handguard, FDE, APRA500718A , MPN: APRA500718A , UPC: 840014611836 , Code: 29D-HZ-ATR8HG-APRA500718A
  • DEMO, Aero Precision AR15 15in ATLAS R-ONE M-LOK Handguard, FDE, APRA500715A , MPN: APRA500715A-DEMO , Code: 29D-HZ-ATR8HG-APRA500715A-DEMO
  • DEMO, Aero Precision AR15 15in ATLAS R-ONE M-LOK Handguard, Anodized Black, APRA500705A , MPN: APRA500705A-DEMO , Code: 29D-HZ-ATR8HG-APRA500705A-DEMO
  • USED, Aero Precision Atlas R-One MLOK Handguard, AR15, Cerakote, OD Green, 15 in, APRA501402A , MPN: APRA501402A-EDEMO , Code: 29D-HZ-ATR8HG-APRA501402A-EDEMO-RE-A
  • DEMO, Aero Precision Atlas R-One MLOK Handguard, AR15, Cerakote, OD Green, 15 in, APRA501402A , MPN: APRA501402A-DEMO , Code: 29D-HZ-ATR8HG-APRA501402A-DEMO
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