(28 reviews)
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Forged from 7075 T6 aluminum, the stripped upper receiver is precision-machined to M16/M4 specification and features M4 feedramps.

Does not come with Forward Assist or Ejection Port Cover

Forged from 7075 T6 aluminum

Precision machined to M16/M4 specs

M4 feedramps

Matte black hard coat anodized Mil 8625 Type 3 Class 2

.250” takedown pin holes

Accepts standard AR15/M16 components


  • 5

    Posted by Michael on November 4, 2020

    I received my upper receivers today and I'm very impressed with the quality. KAK had my order shipped out in excellent time. In my opinion anyone looking for quality parts need not to look any further than KAK . THANKS KAK you have earned the loyalty my business .

  • 5
    Qaulity upper reciever

    Posted by Danny on October 7, 2020

    would buy again

  • 5
    very high quality!

    Posted by kelly on August 27, 2020

    i was looking for a forged 7075 upper.....seemingly for a while. then i remembered my 300wsm upper i got from kak! just like that, these are very high quality uppers. the price makes it too good to pass. kak is my go to place for most of my ar needs.

  • 5
    Most accurate upper yet

    Posted by Mark on July 25, 2020

    On all my builds I always square the receiver face. This one took only about a minute to lap - it was that accurate from the manufacturer. Don't know if it was luck, but it was the best I've ever seen. Will be buying more when available. Best secret on the internet. Can't recommend highly enough.

  • 5
    Excellent square upper

    Posted by Anthony on June 5, 2020

    Flawless, even finish. I build a lot of ARs and normally square a new upper with a facing mandrel. Both of the KAK uppers I have were square from the factory and didn’t require facing. Neither have the KAK logo. Definitely recommend.

  • 5
    Best bang for the buck

    Posted by Grant on April 30, 2020

    I've never seen a receiver at this price point, of this quality. Everything lines up and goes together great!

  • 5
    Good upper

    Posted by Mark on April 5, 2020

    I always true the receiver face before I build an upper. This was the most accurate receiver face I've used yet. Took about a minute to true the face - if it even needed it. Highly recommended.

  • 4
    Great quality and prompt shipping.

    Posted by Tony on January 28, 2020

    Fit a little loose on the lower but an accu wedge tightened it right up.

  • 4
    Best value

    Posted by Michael on May 18, 2019

    As described milspec upper, fits a little loose but not a issue for me since im Working on a budget build. I have seen more expensive uppers rattle the same or more. Only thing the one I received did not have the lazer engraved KAK logo? Not a big deal but would been a nice touch to a built not bought AR.. Overall its a great product and does what it needs todo.