Firearms

Heckler & Koch UMP45 .45 ACP US Federal Agency

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Specifications

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Notable Variants

Aftermarket Ecosystem

Historically Significant Examples

Serial Number Data

Production data from factory records and collector research. Year ranges are approximate for pre-1968 firearms.

Years	Serial Range	Count	Factory	Country	Confidence

H&K polymer submachine gun in .45 ACP adopted by several US federal agencies as an MP5 upgrade offering greater stopping power.

Type: Pistol

Action: Semi-Automatic/Automatic

Caliber: .45 ACP

Capacity: 25

Year introduced: 2000, Germany

Weight: 92 oz

Overall length: 17.7"

Status: Active

Intended use: law enforcement, military