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 MP5, SP5K Bore Cleaner - Bore Boss Pull-Through - 9mm
Real Avid
$12.95Real Avid Bore Boss Pull-Through Bore Cleaner - 9mm From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready,...HKP-19398$12.95 -
HK UMP Lower Locking Pin
HKP HK Parts
$12.95HK UMP Lower Locking Pin, Push Pin For use with all HK UMP lowers & USC to UMP conversions. Made in the USA. This is the pin that holds the lower to the receiver. Compatible With:HKP-18580$12.95 -
Out Of Stock
Magpul M-LOK 3 Slot Rail Section
Magpul
$10.95Magpul M-LOK Rail Section - 3 Slots Designed for use with all M-LOK compatible hand guards and forends, M-LOK aluminum rail sections allow the attachment of various 1913 Picatinny spec rail-mounted...HKP-20661$10.95 -
HK Single Point Sling - OD Green
HKP HK Parts
$29.95HKP Single Point Sling - OD Green This high-quality sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point HK sling. Features:HKP-09057$29.95 -
HK Rifle Cleaning Wick Set - 8 Piece Set - Universal
H&K Heckler & Koch
$1.95Original German Army Issue HK91/G3/PTR Cleaning Kit Wick - Set of 8 Originally issued for the G3,91 & MG3 firearms but will work on pretty much any and all rifles & pistols. Each set comes with 8...HKP-17646$1.95 -
On Sale
HK UMP Magazine Compliance Kit - .45 ACP
HKP HK Parts
Now: $7.46Was: $19.95US-Made UMP .45 Compliant Magazine Kit For All UMP .45 Magazines This kit is a drop-in replacement set that will give you two US-compliant parts towards 922r compliance. Made from high-impact...HKP-01167Now: $7.46Was: $19.95 -
JMAC Universal HRD M-LOK Handstop
JMAC Customs
$49.95JMAC Custom HRD M-LOK Handstop (H)and(R)etention(D)evice Compact, lightweight, and reversible. Features: M-LOK CompatibleHKP-21235$49.95 -
M-LOK Cantilever Rail - Light Mount
Magpul
$19.95Magpul Rail Light Mount M-LOK Designed for use with all M-LOK mounting surfaces, the M-LOK polymer cantilever rail/light mount allows the attachment of various MIL-STD-1913 Picatinny spec...HKP-20689$19.95 -
HK UMP, B&T APC Folding Stock
B&T Brugger & Thomet
$140.00B&T Brugger and Thomet Folding Stock for HK UMP and B&T APC Swiss manufactured B&T APC & UMP Folding stock. (NFA rules apply) <HKP-17441-M$140.00 -
HK UMP, USC Buttstock Axle Pin
H&K Heckler & Koch
$30.95HK 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...HKP-00604$30.95 -
HK UMP Folding Stock
HKP HK Parts
$119.95Folding Buttstock - GSG9 New UMP folding stock. This is a required part for the USC-UMP Conversion using the stock block B. Compatible With: UMP9 UMP40<HKP-19910$119.95 -
HK UMP Magazine - .40 S&W - 30 Round
HKP HK Parts
$49.95UMP, SMG .40 Cal - 30 Round Magazine Each 30 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliber conversions. Each magazine features, steel feed lips,...HKP-17583$49.95