6″ 9mm Complete Upper Assembly

(17 customer reviews)

Complete 9mm upper receiver pistol assembly with 6″ barrel and 5.5″ hand guard. Ready to run with any 9mm AR-15 dedicated lower receiver.


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SKU: AAUT009006 Categories: , , ,

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Angstadt Arms complete upper receiver pistol 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 pistol, 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
  • 6″ 9mm lightweight profile barrel made from 4150 chrome-moly steel with a 1-10” twist rate. 1/2×28 TPI
  • Angstadt Arms 5.5” free float ultra light M-LOK hand guard
  • The hand guard features 2 QD swivel mounting points, M-LOK® mounting interface on 3 sides and a top mil-spec 1913 picatinny rail
  • Handguard ID: 1.375* The last ¾” of the handguard is bored out to 1.405”, allowing most aftermarket sound suppressors 1.39″ in diameter and smaller to tuck inside of the handguard
  • 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
  • Weight: 2.6 lbs
  • Caliber: 9mm NATO
Weight 3 lbs
Dimensions 14 × 3 × 3 in

Angstadt Arms


Angstadt Arms

17 reviews for 6″ 9mm Complete Upper Assembly

  1. Mark Pena (verified owner)

    Awesome Everything. Great Price, Great Quality, Super fast shipping and great customer service. Looking forward to doing more business with Angstadt and will refer my

  2. Kevan Owen (verified owner)

    This is by far, the best upper I’ve ever purchased. The quality is apparent as soon as you open the box. And if for some reason it’s not, just wait until you shoot it. Flawless performance with almost no gas blowback when running suppressed. I’ll be ordering the 9mm glock compatible complete lower to pair with this shortly, even though it runs great paired with a Radical Arms AR 15 lower with endo mag guts. I’m so glad I went with quality over price and I’m now a customer for life.

  3. Jonathon B. (verified owner)

    Had a issue with feeding. I called Angstadt immediately and was told to send it back. Got another barrel put on my upper and everything was taken care of. Got it back within 2 weeks and it functioned flawlessly. Absolutely best customer service I have ever received! Little to know questions ask and I knew it was going to be taken care of. Props to all the good people at Angstadt and the quick turn around time! Will defiantly be buying another upper soon!

  4. Thomas T. (verified owner)

    Bought this upper and attached to my Sharps Bros Jack AR 9 lower. Works like a champ. Easy install and the last round bolt hold open locks the bolt open. I already put 200 rounds through it. Definitely worth the money.

  5. Ryan

    Impressed with fit and finish. More expensive than another upper I was considering but glad I spent a few more dollars to get this one. Would highly recommend.

  6. MT (verified owner)

    The finish looks amazing and it was on my doorstep in 3 days. Highest quality upper I own.

  7. Kevin S. (verified owner)

    Absolutely the best upper I could’ve purchased for my EPC lower. Fit and finish is top notch.

  8. Heath C. (verified owner)

    Always the best quality parts and great customer service you look for!

  9. Michael M. (verified owner)

    Beautiful upper! Fit & finish are unrivaled. 2nd Angstadt Arms purchase & won’t be my last.

  10. Aaron B. (verified owner)

    Quality upper! Just need to replace the POS charging handle for a Raptor.

  11. Steve D. (verified owner)

    Wow, Fantastic upper. Attached it to the Angstadt lower I built and it runs flawlessly. Already have 300 plus rounds through it.
    I had some issues with an off brand upper (FTF) and David and Rich were excellent in their support and trouble shooting. Now I have an eight inch and six inch 9MM that shoot great! You guys Rock!!

  12. Chris A. (verified owner)

    This upper is so well built my credit score went up after I bought it.

    Jokes aside I am glad I paid a little extra for a quality upper. First day at the range I shot around 200 rounds of Magtech 115gr fmj’s through it and it was driving tacs at 30+ yards with iron sights. I put a crimson trace laser on foregrip and it’s deadly accurate.

  13. Brad W. (verified owner)

    No issues as of yet. Will update if need be. First impressions are great. Fired 200 rounds first day with zero issues from the upper.

  14. Marco Nunez (verified owner)

    Great upper. Truly impressed with quality. I had purchased a upper and lower set but later decided to have the entire upper assembled.

  15. Daniel C. (verified owner)

    Good looking upper. Worked like a top first time fired.

  16. Matthew C. (verified owner)

    Bought this upper separately in July of 2017 because at the time the UDP-9 was only available in keymod and I was trying to phase my keymod out.

    I was impressed from the moment I received the upper. Fit and finish is amazing. I planned to cerakote the build but it looks nice enough already, so I may put that off.

    I now have (probably) about a thousand rounds through this upper and it has worked flawlessly even through my light and +p handloads. Some of the most fun I’ve had with an AR in a while.

  17. Brandon B. (verified owner)

    Best complete upper I’ve ever purchased. Craftsmanship is superior to other companies in the industry. Customer service exceeded my expectations as well.

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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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Angstadt Arms 6 inch 9mm complete upper
6″ 9mm Complete Upper Assembly

In stock (can be backordered)

Purchase & earn 599 points!