HKP HK Parts

HKP H&K UMP .45 ACP Barrel - Threaded 16x1 RH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 RH and 3-Lug tipped. The finest barrel for the UMP...

HKP HK UMP .45 ACP Barrel - Threaded 16x1 LH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 LH and 3-lug tipped. The finest barrel for the UMP .45...

HKP HK UMP .40 S&W Barrel - Threaded 9/16x24 - 3-Lug This new USA-made .40 S&W 8" barrel is designed for UMP or Omega firearms, featuring both 9/16x24 threading and a 3-lug tip. It’s...

UMP, SMG .40 Cal 15 Round Magazine - US Each ultra compact 15 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliberP conversions. Each magazine features,...

HK USC & UMP Top Receiver Rail With Hardware - US Made The extended length allows the use of all optics that fit on a Picatinny rail. This unit has a contoured, no-snag design for ease of use and...

HK UMP 9mm Barrel US made replica of the HK UMP 9mm barrel. Counts as one US made compliant part as an added bonus.

HK UMP 9mm -Semi-Auto Bolt Group The semi-auto bolt group is required for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Includes: Extractor Firing...

Sear For The HK UMP, USC, G36, & SL8 - USA CNC machined from aircraft grade aluminum that is hard coat anodized that will last much longer than the factory HK part that's made with plastic. This...

HK USC, UMP 45/40/9mm Recoil Spring/Rod Assembly New USA made recoil assembly complete. Our design allows for easy repair and replacement of the recoil spring itself without replacing the entire...

Quick Detach Sling Pin for Stock Block B - USC, UMP This Ambidextrous QD Sling Pin allows you to replace your Push Pin Style or Eyelet Sling Loop -  Style Pin in your Stock Block B for use of a...

HK UMP Paddle Magazine Release - Enhanced This is a very common replacement part as they are fairly easy to break on the UMP lower. With this new mag release, you'll get a wider release as well as a...

HK UMP Armorer Manual This is the most in-depth manual available for the UMP series and covers the UMP 45, 40, & 9mm calibers. It has 64 Pages with diagrams and in-depth coverage of the history...