Aero Precision Quantum M-LOK handguard 9 inch, FDE.

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Aero Precision Quantum M-LOK handguard 9 inch, FDE.

The Aero Precision Quantum Series 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 the Aero Precision M4E1 Upper Receiver
  • 1pc free float design
  • Removable 4-slot picatinny rail section for 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?
These 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 not you will need the Aero Precision BAR Barrel Nut.

*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.