This document is the operator's manual for the HK UMP Universal Submachine Gun, which provides information on safety rules, assembly groups, accessories, handling and operation, and disassembly.
The Heckler & Koch UMP Submachine Gun is a select-fire small arm manufactured according to the latest standards of manufacturing methods. It features a high-strength polymer upper receiver, lower receiver, magazine, and folding buttstock. The weapon allows single fire, limited bursts, or fully automatic fire from all positions and operates on a simple blowback principle firing from a closed bolt position.
| Caliber | 45 ACP / 40 S&W |
|---|---|
| Operating principle | Simple blow back, firing from a closed bolt position |
| Overall length (buttstock extended) | 690 mm (27.17 in) |
| Barrel length | 200 mm (7.87 in) |
| Cyclic rate of fire | approximately 600 rpm |
| Firing modes | Semi-automatic, 2-round burst, fully automatic |
Before handling the weapon, you must clear it by ensuring fingers are outside the trigger guard, rotating the safety/selector lever to Safe, removing the magazine, and inspecting the chamber.
Users should use ammunition of the appropriate caliber, recent manufacture, clean burning, and non-corrosive. Reloads or remanufactured ammunition should not be used.
The weapon and ammunition must be stored in separate places to ensure safety.