Aero Precision AR15 Quantum M-LOK Handguards


Free-Float Design

Aero Precision AR15 Quantum M-LOK Handguards

Free Float Design

Aero Precision Quantum M-LOK Handguards minimize bulk while providing an adaptive free float design that is big on features. With multiple mounting options, this affordable, rigid system can adapt to any mission. Machined to exacting dimensions from 6061-T6 aluminum it is the perfect handguard for your next AR15 build.


  • Designed to work with our M4E1 Upper Receiver
  • 1pc free float design
  • Removable 4-slot Picatinny rail section for the front sight
  • Built-in anti-rotation tabs
  • 8 mounting surfaces for M-LOK accessories
  • 1.78″ inside diameter fits most muzzle devices and 1.5″ suppressors
  • Compatible with low profile gas blocks
  • Made in the USA

Are you attaching this handguard to a standard threaded upper receiver?
Aero’s Quantum M-LOK handguards use the BAR interface and do not work with a standard barrel nut. If you are using our M4E1 Enhanced Upper Receiver, no additional pieces are needed.  If you are using a standard, threaded AR15 upper receiver, you will need the Aero Precision BAR Barrel Nut for installation.

*Please note – This handguard is specific to the AR15/M4E1 platform. It is not compatible with the M5 .308/M5E1 platform. May not be compatible with all offset sights. *Polymer front Magpul MBUS sights may require modification to the sight for installation.

Actual Handguard Lengths (Stated | Actual)

7″ – 7.25″ | 9″ – 9.22″ | 12″ – 12.28″ |15″ – 14.94″

Technical Information

tem#: APPG400002
Manufacturer: Aero Precision
Type: Quantum M-LOK
Platform: AR15
Material: Machined from 6061-T6 aluminum
Finish: Anodized Black | FDE Cerakote
Weight: 7″ – 7.2oz | 9″-8.8oz | 12″-11.2oz | 15″-13.6oz
Screw Torque: 25in-lbs
MSRP: $84.99 – $159.99

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Weight 16 oz
Dimensions 15 × 3.5 × 3.5 in
Part Type

Handguard, Upper Receiver Parts



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