UMP / USC Series
Choose from an expansive selection of HK UMP and USC parts, such as HK UMP Barrels and HK USC Stocks, crafted for those who value reliability and performance. Upgrade with HK USC Handguards and HK UMP Triggers, and experience the difference in quality and craftsmanship.
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HK UMP, USC Curved Trigger
HKP HK Parts
$99.95HKP HK Parts HK UMP and USC - Curved Trigger With our new curved trigger, you will improve the aesthetics of your firearm. Our curved trigger has spaced-out serrations at the face of the trigger for a far superior grip. Each trigger counts as one...HKP-21126-M$99.95 -
HK UMP, G36 Trigger Spring
H&K Heckler & Koch
$6.95H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger Spring Trigger Spring For All HK UMP & G36 LowersHKP-01864$6.95 -
HK USP, HK45, UMP Flash Hider - .45 ACP - 5 Prong - Threaded 16x1 LH
HKP HK Parts
$99.95HK USP, UMP, HK45 Flash Hider - .45 ACP - 5 Prong - Threaded 16x1 LH 5 prong flash hider for .45 ACP firearms featuring a 16x1 LH threaded barrel. No timing/shims necessary. Compatible With the Following Firearms Threaded 16x1 LH: HK UMP/USC HK45...HKP-02637$99.95 -
HK USC, UMP Extractor - .40 S&W
H&K Heckler & Koch
$54.95HK German UMP Or USC .40 Extractor New HK German factory OEM part. This is a high wear and replacement item as the .40 cal cartridge has a high impulse that results in an increased occurrence of this extractor wearing out and breakage. A must-have...HKP-00264$54.95 -
HK UMP, USC Rear Sight, Complete
H&K Heckler & Koch
$45.95HK Heckler and Koch Complete Rear Sight for USC and UMP Includes: Leaf spring Rear sight Compression spring for rear sight Windage adjustment screw Rear sight support Compatible With: USC UMPHKP-16634$45.95 -
Out Of Stock
HK G36, UMP Hammer - Full Auto
H&K Heckler & Koch
$49.95G36 & HK UMP Hammer For Lower Or Trigger GroupHKP-02308$49.95 -
Out Of Stock
Barrel Bore Cleaning Brush - 9mm / 10mm / .40 S&W
$13.95Universal Bore Cleaning Brush - 9mm/10mm/.40 S&W The HK combination brush was designed exclusively to clean the HK 9mm and 10mm fluted chamber and bore with one easy stroke. This brush has brass and stainless steel bristles.HKP-00917$13.95 -
HK UMP, USC Sight Support Roll Pin - Rear
H&K Heckler & Koch
$9.95HK UMP & USC Rear Sight Support Roll Pin This is the axle pin that holds the rear sight assembly to the rear sight housing of the receiver on the USC or UMP firearm.HKP-02155$9.95 -
Out Of Stock
Picatinny Rail Cover - 45mm
H&K Heckler & Koch
$14.95H&K 45mm Picatinny Rail Cover - Universal New factory HK rubberized picatinny rail cover. Specifications: Rail cover dimensions: 45x26x7 mm Compatible With: HK picatinny rails Other Picatinny railed applicationsHKP-18857$14.95 -
HK UMP, G36 Safety Selector Lever 0,1,F - 9mm, .40 S&W, .45 ACP, 5.56 / .223
H&K Heckler & Koch
$19.95HK 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 G36HKP-01889$19.95 -
On Sale
HK UMP Barrel - .45 ACP - 3 Lug Adapter
OMEGA
Now: $344.95Was: $449.95Omega HK UMP .45 ACP Barrel - 3-Lug This is the newest barrel for the UMP to hit the market that will come with a removable 3-lug adapter. The 3-lug adapter will be the same spec as the MP5 3 lug, making your UMP more versatile when it comes down to...HKP-21070Now: $344.95Was: $449.95 -
HK USC to UMP Stock Block B with Thumb Screw
Michaels Machines
$249.95Michaels Machines USC to UMP Stock Block B w/Thumbscrew For use with all HK UMP factory or US made folding stocks. Each unit comes with a thumbscrew on one end and a slotted section on the other end. This is a required part for the HK USC-UMP style...HKP-20722$249.95