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Angstadt Arms UDP-9 9mm AR9 Pistol 6 Angstadt UDP-9 at Sunset Angstadt UDP-9 On a Stump
Angstadt Arms UDP-9 9mm AR9 Pistol 6 Angstadt UDP-9 at Sunset Angstadt UDP-9 On a Stump
4.5

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$1,375.00
  • Reliable
  • Good ergonomics
  • Utilizes common Glock magazines
  • Accurate
  • Direct-blowback
  • Expensive
Editor’s Note:

Many AR-9s are pushed to market as cheaper alternatives to more expensive pistol-caliber carbines, but not the Angstadt Arms UDP-9. Despite still being a direct-blowback firearm, these feature a much higher build quality with some excellent features like a flared magwell and last-round bolt hold open. If you are looking for a reliable and accurate PCC that has AR-like controls and uses common Glock magazines, this is a great option.

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Angstadt Arms UDP-9 Features

SB Tactical SBA3 pistol brace
Radian Raptor LT ambi charging handle
Radian Talon ambi safety selector
6” chrome moly melonited barrel, threaded

By The Numbers - Angstadt Arms UDP-9

Accuracy
Although we didn't push the UDP-9 past 30 yards, the accuracy we got was impressive.
Reliability
The reliability is great. We did find a minor inconvenience in that magazines with 17 or more rounds need to be loaded with one less round to avoid an issue chambering the first round - it doesn't like 100% full magazines.
Customization
Standard AR features like an M-LOK rail, threaded barrel, and Picatinny top rail make accessorizing very easy. The UDP-9 can also uses standard AR braces and stocks, grips, and is compatible with several AR triggers.
Ergonomics
It offers the familiarity of the AR platform, but the brace and shorter grip do limit comfort a little.
Value
The price reflects the premium build quality. However it only comes with one magazine and the packaging is lackluster.

Hands-On Reviews & Related Post

Angstadt Arms UDP-9 Variations & Comparables

4.8
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KUSA KP-9
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KUSA KP-9

$918.99

Kalashnikov USA’s KP-9 is the civilian version of the Russian Vityaz submachine gun. These easy-to-operate AK-style pistols use a direct-blowback operating system and are chambered in 9mm. A 9.25-inch barrel keeps things handy, and 30-round magazines give you plenty of capacity. Other features include a hinged top cover with a Picatinny rail and feed ramps designed to accommodate hollow point bullets. 

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Sig Sauer MPX K
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Sig Sauer MPX K

$1,528.99

The Sig MPX-K utilizes a 4.5-inch carbon steel barrel to help bring the already maneuverable MPX into an even lighter, handier package. Additionally, the MPX-K features a reliable and durable gas-piston system to help that helps reduce recoil and aids in suppression. The MPX also has fully ambidextrous AR-style controls, a Timney flat-face trigger, and boasts modularity that allows users to easily change handguards and barrel lengths.

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