Upper Receiver – Assembled Billet M4 w/Fwd Assist & Ejection Port

4.67 out of 5 based on 3 customer ratings
(3 customer reviews)

$84.95 $79.95

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SKU: IAS-SBU Category:


Beautifully finished flat top upper receivers. Although these resemble forged, they are machined from a solid block of billet 7075 t-6 aluminum. They have no forge mark and are machined with sharper/cleaner lines.

  • Made From Billet 7075 T-6 Aluminum
  • Lasered T Markings On Rail
  • M4 Feed Ramps
  • Fwd Assist & Ejection Port Installed
  • Works With Any Mil Spec Lower
  • 100% U.S. Made

3 reviews for Upper Receiver – Assembled Billet M4 w/Fwd Assist & Ejection Port

  1. 5 out of 5

    (verified owner)

    Great upper feels and looks great will buy again for next build

  2. 5 out of 5

    (verified owner)

    This upper receiver is really nice. Price is right-on!!! with forward assist & dust cover installed at this price “good luck”. I got this in mail and i had smile from ear to ear. Used it on an upper build with other parts i received from this site. i give it 5 stars but i do have a gripe and that is it was shipped in an package envelope?? It arrived in great conditioned though, no marring or scratches and shipped here right away. I mentioned this before, I say it again…Parts on this site go quick!!! i checked every day watching,waiting for this billet upper to come in and i finally got me one. No regrets at all. I’ve had nothing but good experiences with this site. i don’t see many reviews thru-out this site and descriptions on some parts are lacking but i assure you this site is legit and does good business Im happy every time i order. An assembled billet upper receiver at this price is hard…..damn hard to beat unless your getting one of those “Blemished” uppers. Not here! The finish is great, mil-spec dimensions, and tolerances in the charging-handle an bolt carrier area fit like a glove. I’m Happy.

  3. 4 out of 5

    (verified owner)

    Great price. Didnt match up to my spikes lower as well as it should.

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