HKP HK Parts

HK USC-UMP ACR Stock Adapter & ACR Stock Combo A new product that allows you to add the widely popular Remington ACR folding, adjustable stock to your USC-UMP conversion. Each unit comes complete...

HK UMP, USC Bench Mat, Gunsmithing Mat Our HK USC & UMP bench mat is the perfect cleaning & repair mat designed specifically for your Heckler & Koch models. Have fun and learn while you...

HK UMP Lower Locking Pin, Push Pin  For use with all HK UMP lowers & USC to UMP conversions. Made in the USA. This is the pin that holds the lower to the receiver.  Compatible...

HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those that have already done the...

HKP HK UMP 9mm Barrel - Threaded 1/2x28 - 3-lug HKP UMP 3-lug 1/2x28 threaded barrel. This is the perfect replacement for a worn out barrel or as a spare. With the 3-lug attachment point you can...

HKP .45 ACP 5 Prong Flash Suppressor - Threaded 16x1 LH This is the much anticipated 5-prong flash hider. This flash suppressor is ideal for your USP tactical pistol. It enhances accuracy by up...

HK UMP, USC Rail Set Complete A complete set of rails for your HK UMP/USC featuring an extended top rail for mounting your optic of choice. The rails are scratch resistant, class 3 mil-spec hard coat...

UMP 9mm 30 Round Factory Magazine - USA UMP 30 round magazine for the UMP. Each magazine features enhanced steel feed lips, and a 30 round magazine capacity. Each magazine counts as 3 U.S. Made...

UMP, SMG .40 Cal - 30 Round Magazine Each 30 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliber conversions. Each magazine features, steel feed lips,...

HKP HK UMP (.45 ACP) 25 Round Magazine Made from advanced polymer material with steel feed lips just like the German UMP 45 magazine.  Compatible With: HK UMP .45 LWRC SMG .45 (This magazine is...

UMP, SMG .45 ACP 15 Round Magazine - USA Compact 15 round magazine will fit all HK UMP .45 caliber carbines, SMG's as well as the USC-UMP .45 caliber converted firearms. Each magazine features, steel...

UMP 9mm 15 Round Factory Magazine - USA UMP 15 round magazine for the UMP. Each magazine features steel feed lips, and a full 15 round magazine capacity. A small compact magazine for specific...