H&K Heckler & Koch

HK G36 & UMP Slide For 3 Position Burst Only Lowers - 0,1,2 Only  Compatible With: HK UMP HK G36    

H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger Spring Trigger Spring For All HK UMP & G36 Lowers

Heckler and Koch German made USC and UMP Universal Barrel Roll Pin HK recommends replacing the barrel pin when the barrel is removed with a new barrel pin. This is a great spare part to have on hand...

HK UMP & USC Bolt Catch  New HK German lower. Compatible With: HK UMP HK USC

H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Pin

HK UMP & USC Bolt Catch Spring Compatible With: HK UMP HK USC

HK German UMP Rear Stock Axle Pin This is the HK factory German stock pin that allows you to attach the stock to either the factory receiver of a UMP or for those that are doing the USC to UMP...

HK UMP & USC Cocking Handle Pin Compatible With: HK UMP HK USC

HK UMP & USC Cocking Lever New HK German part. Compatible With: HK UMP HK USC

HK UMP & USC Cocking Lever Spring A great spare part to have on hand.

HK UMP & USC Cocking Lever Support Tube  

HK USC & UMP Slide For Lower - German New HK German USC slide for conversion of UMP lower.