Angstadt Arms UDP-45

Angstadt Arms · Pistol · In Production · 2018

Also known as: Universal Defense Pistol .45, UDP-45

Overview

The Angstadt Arms UDP-45 is an AR-style blowback-operated semi-automatic pistol chambered in .45 ACP. Built on billet aluminum upper and lower receivers, it feeds from Glock-pattern magazines, uses a 6-inch threaded chrome-moly barrel with a black melonite finish, and ships with a free-floating M-LOK handguard and an SB Tactical stabilizing brace. The UDP (Universal Defense Pistol) platform is designed as a compact, suppressor-ready pistol-caliber carbine-style firearm for home defense and recreational shooting.

Specifications

Weight (empty)	2268 g (80.0 oz)
Overall Length	559 mm (22.01")
Barrel Length	152 mm (5.98")
Action Type	Blowback
Firing Mechanism	Hammer Fired
Trigger Type	Single Action
Magazine Capacity	15 rounds
Magazine Type	Detachable Box
Muzzle Velocity	260 m/s (853 fps)
Muzzle Energy	477 J (352 ft·lbf)
Effective Range	50 m (55 yd)
Barrel Rifling	Right Hand
Rifling Twist	406 mm (15.98")
Frame Material	Aluminum
Barrel Material	Steel
Finish	Melonite

Calibers

.45 ACP · primary — also known as .45 Auto, 45 ACP, 11.43x23mm

Features

Firing modes: Semi Automatic
Feed systems: Detachable Box Magazine
Safety mechanisms: Manual Safety
Features: Free Float Handguard, M Lok Handguard, Accessory Rail, Threaded Barrel, Pistol Stabilizing Brace, Glock Magazine Compatible, Billet Aluminum Receivers

Production

Production years: 2018-present

Origin

Country of origin: United States

Notes

UDP stands for Universal Defense Pistol. The .578x28 threaded muzzle accepts .45-caliber suppressors. The platform also exists in 9mm (UDP-9) and 5.56 NATO (UDP-556) variants.

Background

Angstadt Arms was founded in 2014 in Florida, taking its name from Adam Angstadt, an 18th-century Pennsylvania gunsmith. The company specializes in pistol-caliber AR-pattern firearms that feed from readily available Glock magazines.