HDPS

HK UMP, USC 45 ACP 8″ Threaded Barrel HDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 barrel. They are considered by many to be the finest US-made...

Great option since factory HK UMP stocks are hard to find and expensive. The HDPS HK USC/UMP Stock Block "C." Each unit comes with Eyelet / Thumb Screw design. This is the type For use with the ACE...

5 Prong .45 Cal Flash Hider - HDPS 5 prong flash hider made to fit UMP, HK45, USP 45 or other barrels threaded 16 X 1 LH. This is the much anticipated 5 prong flash hider. 5 Prong Flash Suppressor...

HDPS SL8 To G36 Stock Block This is the latest generation of a stock block with the pull pin, NOT the older style with the sling eyelets. The HDPS SL8 to G36 conversion stock block comes complete and...

Stock Block B Sling Pin With Thumb Screw. The original thumb screw version for all stock block B's.

Great option since factory HK UMP stocks are hard to find and expensive. The HDPS HK USC/UMP Stock Block "C" Each unit comes with the new push pin design. This is the type For use with the ACE hinge...

New Latest Production HDPS HK USC/UMP Stock Block -B For use with all HK UMP factory or US-made folding stocks. Each unit comes with a new push-pin design. This is a required part of the HK USC-UMP...

New latest production HDPS HK USC/UMP Stock Block Type For Use With All HK UMP Factory Or US Made Folding Stocks. Each unit comes with the sling loop eyelet and thumbscrews. This is a required part...

New HDPS Stock Block B Sling Pin With Loop washer & Quick Pull Pin.This Sling Pin Will Replace The Current Production Stock Block B Hardware And Upgrade To The Sling Pin Pull Style Version.

US Made Bird Cage Flash Hider With New Style Locking Latch. Made to fit all US made or German HK Flanged style barrels. HK no longer makes a flash hider for the UMP Subgun. This is the much...

US made Bird Cage Flash HiderMade to fit threaded barrels 16 X 1 LH. HK no longer makes a flash hider for the UMP. This is the much anticipated HDPS bird cage style UMP flash hider.HDPS Flash...

US made 5 prong flash hider made to fit the flanged UMP barrels. Will fit factory HK UMP barrels as well as the UMP .45, 40 US made barrels we currently offer. HK no longer makes a flash hider for...

HDPS US Made Steel Trigger - USC, SL8HDPS US Made Triggers are ideal for meeting US 922r compliance as this counts as one of the needed parts when converting the HK USC to HK semi-auto UMP & the...

HK UMP 45 ACP 8 Inch Barrel- Flanged HDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 barrel. They are considered by many to be the finest US-made barrel...

New Second Gen latest production HDPS Faux Sound Suppressor for the Hk USC (Kit includes the Faux Sound Suppressor, lower rail and screws) Realistic looks of the real Sound Suppressor available for...

HK UMP, USC 45 ACP 8" Threaded BarrelHDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 barrel. They are considered by many to be the finest US-made barrel...