Heckler & Koch UMP45, a select-fire submachine gun in .45 ACP. A simple blowback action fires from a closed bolt at about 700 rounds per minute, and the polymer receiver keeps the weight to 2.5 kg. The skeleton stock folds flat along the right side of the receiver, and a Picatinny top rail takes optics over the fixed drum rear sight. Feeds from 25-round polymer magazines.

UMP-45 — Custom License v1.0
By EvilJackk
Workshop ID: 0C5E372FBAE5B1FB
Workshop: https://reforger.armaplatform.com/workshop/0C5E372FBAE5B1FB
Permission requests: Discord @eviljackk
Effective: October 2026

THIRD-PARTY CONTENT NOTICE

This Mod incorporates third-party 3D models and related material lawfully obtained by
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UMP-45

Heckler & Koch UMP-45

ris compatible
suppresor & foregrip included
custom sounds
custom animations

Can be found in the US Arsenal

UMP-45

1.0.1

1.0.0