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 USC Magazine Spring
H&K Heckler & Koch
$8.95H&K USC (.45 ACP) 10 Round Factory Magazine Spring Compatible With: HK USC 10 Round magazinesHKP-15284$8.95 -
B&T Unigrip QD with Bipod
B&T Brugger & Thomet
$198.95B&T Unigrip QD with Bipod This B&T foregrip features a retractable bipod for superior weapon stability in both the standing and prone positions. Specifications: Condition: Factory new Material: Polymer/alloy Heat deflection temperature:...HKP-21387-M$198.95 -
Out Of Stock
HK UMP .40 - 30 Round Magazine - Used
H&K Heckler & Koch
$49.9530 Round Magazine – Used – UMP .40 S/W This magazine will fit all HK UMP .40 caliber UMP’s as well as the USC-UMP .40 caliber conversions. Used factory HK magazine. Compatible With: HK UMP .40 HK USC-UMP conversions LWRC SMG.40HKP-20816$49.95 -
HK USC, SL8 Buttstock Allen Screw
H&K Heckler & Koch
$17.95Buttstock Allen Screw For HK USC Or HK SL8 rifles. This is the screw that holds the stock assembly onto the upper receiver of the HK USC & SL8.Great for replacements or to have as spares. This item is factory HK and a common spare.HKP-01649$17.95 -
On Sale
HK UMP Magazine - .40 S&W - 30 Round - USED
HKP HK Parts
Now: $36.95Was: $49.95HKP HK UMP (.40 S&W) 30 Round Magazine - USED Each 30-round magazine will fit all HK UMP .40 caliber carbines, SMGs as well as the USC-UMP .40 caliber conversions. Each magazine features steel feed lips, enhanced polymer construction and all correct...HKP-17583-USEDNow: $36.95Was: $49.95 -
HK UMP, USC, G36 Handstop - Complete
HKP HK Parts
$49.95Hand Stop Complete - USA - UMP, USC & G36 Compatible With: USC UMP G36K G36CHKP-19236$49.95 -
HK UMP 2 Position Complete Lower
H&K Heckler & Koch
$579.95New HK German 2 Position Lower Complete New German Heckler & Koch UMP Lower. 2 position settings (S,F). Each lower comes complete with all the factory internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Compatible...HKP-19117$579.95 -
HK UMP, USP, HK45 Flash Hider - 5 Prong - Threaded 16x1 LH
HDPS
$99.95HDPS .45 ACP 5 Prong Flash Hider - Threaded 16x1 LH The 5 Prong Flash Hider is designed to fit .45 ACP firearms threaded 16x1 LH This highly anticipated flash suppressor enhances accuracy by up to 35% and reduces recoil by up to 40%. With no indexing...HKP-20459$99.95 -
Pistol Flash Hider - Vortex - .45 ACP - Threaded 16x1 LH
Smith Enterprises
$79.95Smith Enterprises .45 ACP Vortex Pistol Flash Hider - Threaded 16x1 LH Each flash hider is threaded 16x1 LH twist. Made of 4140 ordnance grade steel, heat treated, and finished in the Melonite finish to add the best corrosion and abrasion resistance...HKP-02323$79.95 -
HK45, UMP Flash Hider - 4 Prong - Threaded 16x1 - Left Hand
HKP HK Parts
$74.95HK Parts 4 Prong Flash Hider .45 ACP Threaded 16x1 LH Designed for all HK German .45 ACP threaded barrels, including full size and compact models. Made from heat treated ordnance grade steel with a melonite finish, it offers superior corrosion and...HKP-01017$74.95 -
HK UMP Magazine - 25 Round - LEO Marked - Used
H&K Heckler & Koch
$149.95German HK UMP .45 25 Round Magazine - Used Used PD trade-in factory 25 round magazines with HK factory-marked LEO markings. Condition of used parts will vary. All used parts are sold AS-IS. Compatible With: HK UMP .45 ACPHKP-17917$149.95 -
HK UMP, USC, G36, SL8 Notched Disk - S,F
$8.95HK Ratched Wheel, Notched Disk G36, SL8 0,1 (Safe & Fire) Only Compatible With: HK UMP HK USC HK G36 HK SL8 (0,1 or S,F only)HKP-19070$8.95