Colt AR15A2 Complete Upper Receiver Assembly - USED

(12 reviews)
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Colt AR15A2 Complete Upper Receiver Assembly - USED


Original Colt AR15A2 complete upper receiver assemblies with fixed carry handle and 16" barrel. NO bolt carrier group assembly or charging handle included. Perfect for retro builds! Conditions are good.

All police trade-ins are fully functional but aesthetic conditions vary. All used items are sold as is with no returns.


  • 5
    Colt AR15A2 complete upper receiver assembly-used

    Posted by Unknown on 20th Sep 2021

    AU has continued to exceed expectations. I was really happy with what I received and how quickly it shipped I will buy again

  • 5
    Used Colt Uppers are Great

    Posted by Lone Star on 23rd Dec 2019

    Used Colt upper was VERY Dirty but cleaned up nicely! Smooth action. Good deal on quality hardware. Thanks! ][][][%

  • 5
    Excellent trade-in value!

    Posted by Chris on 19th Dec 2019

    Excellent trade in value for a basic 16" general purpose AR. I'm not usually one to suggest carry handles, but if you need an upper for a ranch or general purpose rifle this upper does the job, and it's all Colt from when they were unmatched in quality. An excellent value all around.

  • 4
    Standard cop gun...

    Posted by Nic on 17th Dec 2019

    Correct markings (Diemaco/Colt Canada). The receiver itself only has the Cero forge mark. Lots of external marks. Very little internal wear. Standard cop gun—carried a lot, shot seldom. Mine arrived with some trooper’s wife’s hair tie securing the front sling swivel to the creaking gas block... so... safe to say it wasn’t shot much in THAT configuration as the heat would e melted the hair tie instantly. Ha.

  • 3
    A2 colt upper

    Posted by R.Robinson on 13th Dec 2019

    I know this item was listed as used and law enforcement trade in but mine looks like it had been through 2 Wars. Upper is not Colt marked. After reading other reviews I had hoped for much better. Mine was filthy covered in grease and carbon and looks like somebody had used a Dremel tool on it in several places. Barrel was loose.

  • 5
    Early M4 “A2” inside- nice surprise

    Posted by Bret on 6th Dec 2019

    An unexpected surprise upon opening the box- an early “A2” M4 upper receiver “C” with Cerro forge mark! Unbeknownst to many- the earliest M4s had A2 (flat tops didn’t exist yet) uppers with a light profile 1/7 barrel and M4 barrel extension (52 degree cuts). The complete upper had scratches and minor dings. Bolt is early type- M4s later had different cut at rear base of locking lugs, Bolt carrier is Sporter/Match Target type. The .250 pivot pin and takedown pin holes are present. All “C” and other markings present (bolt, carrier, extractor, receiver and barrel). An unexpected and rare surprise indeed.

  • 4
    Colt AR15A2 Upper

    Posted by Lynn R. on 6th Jun 2019

    Great upper for the price!!! Shinny bore. All Colt markings. FYI, BCG is a nonhooded.

  • 3
    All colt A2 complete upper!

    Posted by Cb bandit on 5th Jun 2019

    Said all colt, came in a colt upper box. The barrel and bolt carrier have colt markings. Unfortunately the actual upper receiver only has a cardinal forge mark. No colt markings at all on the receiver! I reached out to AU customer service and was told that colt varies on markings and these were police trade in’s. I wasted money on this purchase. I have several colt ar15’s and all have colt markings except the one from

  • 5

    Posted by Simon Beckwith on 4th Jun 2019

    Fast shipping, great upper. Looks to have been mounted, but never fired. Not even a ding on the deflector. Great deal!