Angstadt Arms UDP-9 Final Review — Should You Buy One?

| December 24, 2015 | 5 Comments

This is a “recap” post for the blog — if you’re following us on Facebook or have subscribed to our YouTube channel this is a repeat.

We’ve had the Angstadt Arms UDP-9 AR15 pistol for about two months.

I really enjoyed shooting it, and the UDP-9 was on the top of everyone’s “must shoot” list at SHOT Show 2015.

During this review period, a few of ¬†you asked “should I buy a UDP-9, or something else?”

The answer is: “it depends.”

In this video, I’ve attempted to establish a decision tree that may help you decide to purchase a UDP-9.


The Angstadt Arms UDP-9 was provided to us for evaluation by Angstadt Arms


About the Author:

Short Barrel Shepherd Short Barrel Shepherd is a regular guy and works to make Web sites and mobile apps easier for people to use. He spends his free time attending fight-focused firearm, knife, and combatives training, motorcycling, writing, and playing games. His daily carry is a Glock 19 pistol and an AR15 .300 Blackout pistol in a backpack.
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5 Comments on "Angstadt Arms UDP-9 Final Review — Should You Buy One?"

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  1. van der lin says:

    is the last round bolt hold open working on that?

    • Short Barrel Shepherd Short Barrel Shepherd says:

      According to Angstadt Arms the UDP-9 is supposed to BHO. We were unable to get ours to do so, but it was also an early model before Angstadt Arms made a slight modification to enable better compatibility with MagPul Glock mags.

  2. van der lin says:

    yep, so there are two theories to counter attacking active shooters. You could just go in loud and hope you can take them all by surprise at once and take them out w/ a rifle chambering, or you could carry a suppressed subsonic gun and try and sneak up on them one by one and take them out.

    Supersonic SBRs are so loud that even suppressed they will get you unwanted attention from the terrorists or the police so it is probably not worth the weight of carrying a heavy rifle suppressor in the bag too. However, an Aluminum can for 9mm is of neglible weight and could give you a meaningful tactical advantage.

    The drawback to shooting bad guys w/ 9mm or subsonic 300 BO is that you have to get closer and the terminal ballistic effect is markedly less, which all equals more chance for you to get shot by the bad guys.

    The more I think about it, the more I am convinced that way to go is to just go light and carry an Endo tac adapter and some Glock 18 mags to go w/ the glock you already have on your belt. You could kit up and run towards the gun fire if you wanted to. Or, if you are willing to carry more weight, just carrying something in a rifle chambering. I am thinking about actually starting this but it woudl have to be light light light so it is actully on your back when the shit hits the fan, because like you said, if it is in the car it is too far away to do any good.

    I am thinking about getting that Extar 556 pistol, it weigs just under 3lbs empty and is apparently well reviewed. 8.25″ barrel. Put a Pig type muzzle device on there and throw some ear muffs in with it of course. They have a thing that can host a brace or a 40 rd Pmag as a “cheek rest,”

    Have you ever considered one?? Serous question. Thx

    • Short Barrel Shepherd Short Barrel Shepherd says:

      We test-fired a G17 with the ENDO adapter when we were doing our Glock enclosure reviews. None of us found it possible to view the stock iron sights while properly using the stock. There are people trying this with RMR-equipped Glocks and suppressor sights, and I think it might be the way to go.

  3. Okdokie says:

    Did the udp9 designed upper reduce gas to the face while running surpressed as compared to using a regular 5.56 upper? I think most people are comparing this to qc10 and new frontier.

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