AR15 Enhanced Quad Rail Handguards

Aero Precision M4E1 Enhanced Series Quad Rail Handguards

AR15 Enhanced Quad Rail Handguards Product Sku: APPG100003

Our Enhanced Quad Rail (EQ) Handguards provide a lightweight free float design for your custom AR15 build. The EQ system features x4 1913 picatinny rails for advanced modularity and customization. Machined to mil- spec dimensions and engineered to perfection, these handguards eliminate bulk while retaining strength and stability.


  • 1pc free float design
  • 6 built in QD sockets
  • Built in anti-rotation tabs
  • Scalloped rails
  • Continuous top rail
  • 1.8" inside diameter fits most muzzle devices and 1.5" suppressors
  • Compatible with low profile gas blocks

Are you attaching this handguard to a standard threaded upper receiver?
Make sure to select "Yes" under the Bar Barrel Nut option above (shims included). Our 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. Purchased with a handguard, the BAR Barrel Nut is $20 ($40 when sold separately).

*Please note - This handguard is specific to the AR15/M4E1 platform. It is not compatible with the M5 .308/M5E1 platform.

Platform AR15
Material Machined from 6061-T6 aluminum
Series Quad Rail
Weight(s) 7" - 7.36oz, 9" - 9.6oz, 12" - 12.48oz, 15" - 15.04oz
Other Handguard Screw Torque - 25 in-lbs

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