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WTS WA Aero Precision COP C4 Upper Receiver Kit

Discussion in 'Part & Accessory Classifieds' started by ur6an, Jun 6, 2014.

  1. ur6an

    ur6an Everett New Member

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    WTS Aero Precision COP C4 Upper Receiver Kit. New in the box, never used. Taking my current build in another direction. My change of mind is your benefit. Asking $340 firm / no trades. Willing to meet half way for those in Snohomish, King, Skagit county. Willing to ship on your dime.

    9 inch barrel for reference. Barrel NOT included.

    The COP C4 (Continuous Optics Platform) is 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.

    This system uses any standard AR-15 barrel, not a proprietary barrel system. BARREL NUT and WRENCH are included with the kit. The receiver design also has a fully enclosed dust cover pin which can be removed with the barrel in place. Forward assist and dust cover already installed.

    NOTE: Barrel assembly, bolt and carrier group and charging handle not included.


    Compatible with Mil – STD AR15 components
    7075-T6 forged aluminum construction
    MIL-A-Type 3 black hard-coat anodize with MIL-Spec dry lube on interior bearing surfaces
    M4 feed ramps
    Extremely rigid user configure rail system
    Free-Float Hand Guard 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 off hand
    All kit components made in the USA

    Full Kit Includes:

    COP C4 – 2ea 1913 Half Rail
    COP C4 – 2ea 1913 Rail
    COP C4 – 1913 Rail with QD
    COP C4 – 2ea Flat Rail
    COP C4 – Flat Rail with QD
    COP C4 – 2ea Quarter Panel
    T25 Torx Driver
    20ea 8-32 x 3/8 Screws
    Barrel Nut
    Barrel Nut Wrench
    Factory Installed Dust Cover and Fwd Assist
    Aero Precision COP bag roll

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    Last edited: Jun 7, 2014
  2. Mr. Ben

    Mr. Ben Snohomish Co. Active Member

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    Is this the DI model or the Piston compatible model?
  3. ur6an

    ur6an Everett New Member

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    Im going to say DI model. As nothing in the product description at time of purchase referenced piston compatibility.