Aero Precision is introducing its AR15 M4E1 Enhanced Upper Receiver and Handguard system. The uppers are forged from 7075 T6 aluminum and are precision machined to M4E1 specifications. They include M4 feedramps, a Matte black hard coat finish, laser-engraved T-marks, and a handguard mounting platform. A barrel nut and wrench is included. The one-piece free float handguards, meanwhile, are forged from 6061-T6 Aluminum and have an inner diameter of 1.8″ which fits a majority of muzzle devices and 1.5″ suppressors. MSRP for the AR15 M4E1 enhanced upper and handguards in Quad, KeyMod & Magpul M-LOK is $232.90 to $343.40. See below for more information.

Features: Aero Precision AR15 M4E1 Enhanced Upper Receiver

  • Forged from 7075 T6 aluminum
  • Precision machined to M4E1 specs
  • M4 feedramps
  • Matte black hard coat anodized Mil 8625 Type 3 Class 2
  • .250” takedown pin holes
  • Laser engraved T-marks
  • Comes assembled, with port door and forward assist installed
  • Accepts standard AR15/M16 components
  • Handguard mounting platform is forged into the receiver
  • Works with Aero Precision handguards but also fits most BAR-system hand guards
  • Barrel nut and wrench are included

Features: Aero Precision AR15 M4E1 Handguards – Quad, KeyMod & M-LOK

  • 1pc free float design
  • Rail is Machined from 6061-T6 Aluminum
  • Built in Anti-Rotation tabs
  • 1.8″ inside diameter fits most muzzle devices and 1.5″ suppressors
  • Compatible with Many Low profile gas blocks
  • Quad & KeyMod: Continuous top rails, Scalloped rails
  • M-LOK: Continuous top rail
  • Quad: 6 Built-in QD sockets

Available Colors: Aero Precision AR15 M4E1 Enhanced Upper Receiver & Handguard

  • Anodized (MIL-A-Type 3 black hard-coat)
  • Desert (H-267Q Magpul FDE)
  • Olive (H-232 Magpul OD)
  • Titanium (H-170Q)
  • Tungsten (H-237Q)
  • Burnt Bronze (H-148Q)

For more information about the AR15 M4E1 Enhanced Upper Receiver and Handguard system, and the full range of products currently offered by Aero Precision, please visit

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