The HK UMP is freely configurable with regard to its features. The optional equipment portfolio ranges from the classic skeleton buttstock to the use of tactical helmet buttstock variants. The UMP is available as a semi-automatic or fully automatic submachine gun.

The UMP is a cost-effective, state-of-the-art weapon that offers the advantages of a simple operating system, lightweight, low cost, uncompromising reliability, and modularity. Like all HK submachine guns, UMPs fires from the closed bolt position for accuracy and safe handling.

The UMP can be converted from 9×19mm Parabellum, .40 S&W, or .45 ACP by changing the barrel, bolt, and magazine. The UMP was previously available in multiple calibres, however with a decline in global use of .40 S&W and .45 ACP, only the 9mm Parabellum variant is in production.

The UMP offers the common Law Enforcement Duty 9mm rounds available in a lightweight sub-machine gun from Heckler & Koch.

UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in with the total swapover of parts taking about 5 mins.

The newly released Omega Gideon Shadow (GS) 9mm pistol is recoil operated, closed bolt, lightweight, durable and easy to maintain semi auto pistol. Each pistol covers 3 of the most popular calibers in 9mm, .40 and .45 respectively.

Aug 26, 2020 · The Heckler & Koch Universale Maschinenpistole (UMP for short) is kind of like H&K’s Jan Brady. The UMP’s older sister (who is frankly much better looking) is the MP5. That 9mm submachine gun rightly gets a lot of attention. Following shortly behind the UMP in my middle-child metaphor is the MP7.

Nov 7, 2021 · Designed to be more mission-configurable than the MP5, the UMP offers the advantage of caliber modularity: being easily interchangeable among 9mm, .40 S&W, and .45 ACP. The UMP fires from the closed bolt position for accuracy and safe handling.

Apr 1, 2023 · Michael's Machines has completed a new run of 9mm UMP bolts and barrels. The bolts are sized to fit the USC receiver so you will be good to go to use them in either a stock-block or fuse-job conversion or in a Tom Bostic TMP.

Jan 14, 2022 · Plenty of 9mm options available, not so many 45ACP. The UMP platform is excellent in 9mm! I've been shooting 9mm kits in USC 45s for years.