Aero Precision C.O.P. M4 Mid-Length Upper Receiver Minimalist Kit - Anodized Black

SKU# 6745 | by Aero Precision
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The C.O.P. M4 (Continuous Optics Platform) features a custom configured integrated upper receiver and hand guard system. This extremely rigid design allows for symmetrical or asymmetrical rail platforms to accommodate a multitude of optic requirements. The hand guard system allows for a free-floated barrel giving the operator superior performance and accuracy. The mid-length C.O.P. (M4) features a handguard that is properly sized to meet up with an A2 Front Sight Block when used with a mid-length gas system. It will cover the gas block when used with pistol or carbine length gas system and low profile gas block. This system uses any standard AR-15 barrel, not a proprietary barrel system. The receiver design also has a fully enclosed dust cover pin which can be removed with the barrel in place.


  • Compatible with Mil - STD AR15 components
  • 7075-T6 forged aluminum construction
  • Extremely rigid user configurable rail system
  • Free-Float handguard rail system
  • AR-15 Standard Barrel Interface, only the barrel nut and wrench are changed (both included)
  • Fully enclosed dust cover pin which can be removed with the barrel in place.
  • Dedicated thumb perch for improved ergonomics when gripping the magwell with the weak hand
  • All kit components made in the USA

Minimalist Kit Includes:

  • 1ea 1913 Half Rail with QD
  • 1ea 1913 Rail with QD
  • 1ea Flat Rail with QD
  • 2ea Quarter Panel
  • T25 Torx Driver
  • 13ea 8-32 x 3/8 Screws
  • Barrel Nut
  • Factory Installed Dust Cover and Fwd Assist
  • Aero Precision C.O.P. bag roll

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