16″ 9mm Complete Upper Assembly

(10 customer reviews)

Complete 9mm 16″ upper receiver assembly. Ready to run with any 9mm AR-15 dedicated lower receiver


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SKU: AAUT009016Categories: , , ,

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Angstadt Arms complete 16″ upper receiver assembly is ready to run out of the box with any 9mm AR-15 lower receiver. Featuring the same high quality parts that go into are UDP-9 rifle, this completed upper receiver is compatible with both GLOCK® and COLT® style 9mm magazines.


  • 7075-T6 billet aluminum slick side pistol caliber upper receiver with appropriately sized ejection port
  • 16″ 9mm barrel made from 4150 chrome-moly steel with a 1-10” twist rate. 1/2×36 TPI
  • 15” ultralight handguard with M-LOK® mounting interface on the 3, 6, 9 & 12 O’clock positions
  • Top mil-spec 1913 picatinny rail with lightening cut
  • Black nitride 9mm AR-15 bolt carrier group. For use with a standard AR-15 hammer
  • Compatible with both GLOCK® and COLT® style 9mm dedicated lower receivers.
  • Angstadt Arms 9mm flash hider
  • Mil-spec charging handle
  • Caliber: 9mm NATO
Weight4 lbs
Dimensions24 × 3 × 3 in

Angstadt Arms


Angstadt Arms

10 reviews for 16″ 9mm Complete Upper Assembly

  1. Jamie (verified owner)

    These uppers run flawlessly

  2. Arnie (verified owner)

    Awesome great addition

  3. Joe R. (verified owner)

    Runs flawlessly. I have mine on a lower with a vltor a5 buffer tube, kynshot 5007, and a 308 carbine spring with a custom spacer at the back of the tube. Runs really smoothly with great dot return. Ran it at a match last weekend and loved it. Even with just a flash hider it runs smoother and flatter than the compensates Davinci I’ve been running. Would recommend for sure

  4. Dan R (verified owner)

    Perfect fit on my UDP-9 lower. Another great product from Angstadt.

  5. Virgilio B. (verified owner)

    Excellent Product

  6. Phil R. (verified owner)

    I put 300 rounds through it over the weekend. It’s on my UDP-9 lower, I simply swapped the current upper for the new 16” upper.

    It is performing flawlessly. Not a single FTF or hiccup.


  7. David Lane Fernando (verified owner)

    Great quality. Will buy more parts soon.

  8. Tracy Brown (verified owner)

    Very satisfied with product great addition to my UDP-9 worked flawlessly at the range today 100 plus rounds.

  9. Tom (verified owner)

    As usual Angstadt never fails to surprise me with how excellent their products are. Excellent fit with no wiggle on my Sharp’s Brothers Jack lower.

  10. Ron (verified owner)

    So easy to assemble and be ready to use in minutes. Great quality addition to my AR9

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Angstadt Arms is born from a rich heritage of master gun makers, a family legacy spanning centuries, now reimagined with innovation and technology. We believe every gun owner is part of a grand story and we invite them to add a new chapter with us.

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Complete 16 in AR-9 Upper Assembly
16″ 9mm Complete Upper Assembly

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