H&K Heckler & Koch

HK Heckler and Koch 9mm Parts Kit in Like New Condition for HK UMP Click this link to complete your build with an S5 Tactical receiver. Black Ops Defense offers the full gamut of HK USC, UMP...

UMP Pistol Grip Stripped & Incomplete - 2 Position (0,1) Pictogram New HK German manufacture, rare and hard to find. If you have an HK USC you can use this housing with the USC lower internals...

Stripped UMP Pistol Grip - 4 Position (0,1,2,D) Pictogram

UMP Pistol Grip Stripped & Incomplete - 3 Position (0,1,F) Pictogram New German HK UMP 3 position lower.

HK UMP Demilled Receiver Section This is a demilled factory HK UMP rear receiver section that is perfect for the new Tom Bostic USC-UMP conversions. This section is the perfect length in order to do...

HK UMP Catch Release Lever Or Trip Lever For All UMP Lowers  

HK UMP Release Lever Spring For All UMP Lowers  

HK German UMP Folding Buttstock  Brand new German HK folding stock. This is a required part for the USC-UMP Conversion using the (stock block B). All UMP folding buttstocks come with an HK date...

HK G36 & UMP Buttstock Push Button This is a factory HK German replacement button for the HK G36 and HK UMP stock.

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

HK Ratched Wheel Notched Disk For 3 Position Lowers Compatible With: HK G36 HK UMP

HK UMP & G36 Left Side Safety Selector Lever With Axle - 3 Position Navy Compatible With All Navy 3 Position Lowers (0,1,F): HK UMP HK G36