What magazine does it take?

This takes Glock 17/19 magazines. Like item number GLK-9-170 just type the item number into buds search and it'll pop up. Or just search Glock 19 magazine and any of those will fit. Hope this helps.

Dave, this model uses Glock and Glock Style Magazines and Drums : https://www.budsgunshop.com/product_info.php/products_id/718007023/magazine+for+glock+34rd+9mm ---------------------------- https://www.budsgunshop.com/product_info.php/products_id/713087438/kci+usa+inc+magazine+for+glock+9mm

Dave, The UDP is a compact personal defense weapon chambered in 9mm and fed with GLOCK® magazines. Have a great day!

What is the thread pitch on the barrel? 1/2 x 28 or 1/2 x 36?

Barrel is threaded 1/2×28 and can accept a suppressor. Full specs here https://angstadtarms.com/product/udp-9-pistol-with-sba3-brace/

Daniel, thread pitch is 1/2 x 28. >>> https://angstadtarms.com/product/udp-9-pistol-with-sba3-brace/ ..... Have a great day!

My answer is a direct copy and paste from Angstad arms website. Not sure where Edward's source is but its wrоng

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Angstadt Arms UDP-9 Black Anodized 4.5" 9mm Pistol - 4.5" Barrel, 17 Rounds

Name: Angstadt Arms UDP-9 Black Anodized 4.5" 9mm Pistol
Brand: Angstadt Arms
SKU: 712021816
Availability: OutOfStock
Rating: 3.50 (2 reviews)

2 Reviews| 2 Questions & Answers

Model: AAUDP09M04

Condition: Factory New

Bud's Item Number: 712021816

UPC: 853427007448

MFG: Angstadt Arms

Questions & Answers (2) Reviews 3.5 out of 5

Angstadt Arms UDP-9 Black Anodized 4.5 9mm Pistol

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The UDP-9 Pistol features a 4.5 barrel and Maxim Defense CQB stabilizing brace. It is chambered in 9mm and fed with GLOCK

Product Information

Type

Semi-Automatic

Action

Not Listed

Caliber

50 Action Express

Barrel Length

5.4

Capacity

Product Information

Type

Pistol

Action

Semi-Auto

Caliber

9mm

Barrel Length

4.5

Capacity

Product Information

Type

N/A

Action

Semi-Auto

Caliber

38 Special

Barrel Length

6.02

Capacity

OUT OF STOCK

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In-Store Purchase Only
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Angstadt Arms UDP-9 Black Anodized 4.5" 9mm Pistol

Model AAUDP09M04	Condition Factory New
Bud's Item # 712021816	UPC 853427007448
Manufacturer Angstadt Arms

The UDP-9 Pistol features a 4.5 barrel and Maxim Defense CQB stabilizing brace. It is chambered in 9mm and fed with GLOCK

Operators Manual

2 Reviews. 3.5 out of 5 Stars!

5 Stars

50%

4 Stars

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2 Stars

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1 Star

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Matthew R on 06/13/2022

Rating: 2 of 5 Stars!

I'm not impressed. I can't get it to feed any ammo with flat front. It will not feed Winchester 147gr hollow points or American eagle 147gr. I tried multiple mags including factory Glock 33rd. There are no feed ramps the flat fronted rounds just slam into the breech and won't chamber.

Michael K on 02/17/2021

Rating: 5 of 5 Stars!

Awesome gun. I’ve only ran about a 100 rounds through it (gotta conserve ammo during this ammo shortage) but it was a joy to shoot and I had no issues. I really like the maxim CQB armbrace that came with it, it’s probably the nicest brace I’ve ever used.

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Questions & Answers

Q: What magazine does it take?
Answered

Asked 01/19/2022 13:50 by Dave M

A:

As stated on the description page for this, The UDP-9 Pistol features a 4.5 barrel and Maxim Defense CQB stabilizing brace. It is chambered in 9mm and fed with GLOCK magazines.
See 4 more answers |
Q: What is the thread pitch on the barrel? 1/2 x 28 or 1/2 x 36?
Answered

Asked 12/30/2021 12:42 by Daniel I

A:

Barrel is threaded 1/2×28 and can accept a suppressor. Full specs here https://angstadtarms.com/product/udp-9-pistol-with-sba3-brace/
See 2 more answers |