HK 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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Bore Boss Pull-Through Bore Cleaner - .40/.41
Bore Boss
$10.95Real Avid Bore Boss Pull-Through Bore Cleaner - .40/.41From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece cable...HKP-19411$10.95 -
Out Of Stock
H&K HK G36, HK UMP, HK USC, HK SL8 Lower Compression Spring
H&K Heckler & Koch
$7.95HK G36, SL8, USC, & UMP Compression Spring For Index Plate - LowerHKP-01865$7.95 -
H&K HK USC, UMP Rear Sight Complete Assembly
$39.95Rear Sight Assembly Complete - USC, UMP - USAAll the parts needed for the rear sight on a HK USC, UMP build. New USA made parts for your build.HKP-19533$39.95 -
H&K UMP (.40 S&W) 30 Round Magazine Housing
H&K Heckler & Koch
$69.95New HK UMP .40 30 Round Magazine HousingNew HK German UMP .40 30 Round Factory Magazine Body. A Great Spare Part In The Event That Your Mag Body Is Damaged Or Cracked.HKP-16369$69.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Rear Sight Complete
H&K Heckler & Koch
$45.95HK USC and UMP Rear Sight CompleteFits on: USC. 45 UMP 9mm UMP .40 UMP .45HKP-16634$45.95 -
H&K USC (.45 ACP) Carbine Mag Release Axle
H&K Heckler & Koch
$18.95HK German USC Magazine Release AxleFits all HK USC lowers.A great replacement as they are prone to breakage & wear. These are also a missing part in some states where bullet buttons are required.HKP-02584$18.95 -
HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin
HDPS
$39.95New 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.HKP-16339$39.95 -
Out Of Stock
HK 416/MP5 Sling Swivel
HKP HK Parts
$34.95HK 416/MP5 Sling Swivel Sling swivel for the Walther 416 and MP5 .22 rifles. This will attach to the quad rail on the 416 to give you an attachment point for a 2 point sling. May also be used with the an MP5 that has a tri rail set up.HKP-16318$34.95 -
HK UMP/USC (.40 S&W/.45 ACP/9mm) Side, Bottom Rail With Hardware
$24.95HK UMP, USC Side, Bottom Rail With Mounting Hardware - Aluminum Listing is for one rail. The UMP/USC can use up to 3 of the rails on the forearm section of the firearm. 1 each for the sides and 1 for the bottom for a total of 3 rails. Each rail is made...HKP-00598$24.95 -
HK UMP/USC (.45 ACP) Extractor
$39.95New US Made USC & UMP .45 Extractor. Fits Both The USC & UMP's. Perfect For Spares As They Are Prone To Breakage & Are A Common Wear Item. Please note: HK considers this a high wear and replacement item. Once it is removed from the carrier...HKP-02623$39.95 -
HKP 25 Round HK UMP 40 25 Round Magazine - FDE
HKP HK Parts
$49.95HK UMP 40 magazine & LWRC SMG40 - FDEMade from advanced polymer material with steel feed lips just like the German UMP 40 magazine at a fraction of the cost. This UMP 40 mag will fit all HK UMP .40 firearms as well as the LWRC SMG 40 and other UMP...HKP-20519$49.95 -
HKP HK UMP & HK USC Extended Top Rail For Optics
HKP HK Parts
$59.95UMP & HK USC Extended Top Rail is Nearly An 1" Longer Than The Standard Length Top Rail. This Picatinny Top Rail Allows The User To Add An Eotech, Aimpoint, Acog, Etc. Made in the USA from 6061 aluminum and hard coat anodize in a beutiful black...HKP-21048$59.95 -
HKP HK UMP Enhanced Top Rail - Red
HKP HK Parts
$49.95HK USC, UMP Top Receiver Rail With Hardware. The Extended Length Allows The Use Of All Optics That Fit On A Picatinny Rail. This unit has a contoured no snag design for ease of use and a beautiful fit. Made in the USA. Made from billet machined aluminum...HKP-20812$49.95 -
HKP Single Point Leather Sling - OD Green
HKP HK Parts
$49.95Single Point Leather Sling - OD Green Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...HKP-20163$49.95 -
Magpul RSA - Rail Sling Attachment
Magpul
$29.95Magpul RSA - Rail Sling Attachment Attaches to Picatinny rails for an additional point of attachment for slings.HKP-02423$29.95 -
Michaels Machines USC to UMP Stock Block B w/Thumbscrew
Michaels Machines
$249.95New Michaels Machine HK USC/UMP stock block 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 conversion...HKP-20722$249.95 -
MM HK UMP (9mm) Barrel - 3 Lug/Threaded
Michaels Machines
$549.95HK UMP (9mm) Barrel - 3 Lug/ThreadedHKP-02278$549.95 -
Out Of Stock
MM HK UMP (9mm) Full Auto Bolt
Michaels Machines
$699.95HK UMP 9mm - Full Auto Bolt - Stripped The full auto bolt carrier is for HK UMP rifles. The full-auto bolt carrier will not work in the HK USC conversion rifles. One of the finest aftermarket carriers you can buy. Features: Tungsten filled Heat...HKP-02288$699.95 -
Out Of Stock
MM HK UMP/USC (9mm) Semi Auto Bolt Carrier
Michaels Machines
$699.95HK UMP/USC (9mm) Semi Auto Bolt Carrier The semi-auto bolt group is needed for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Specifications: Tungsten Filled Heat Treated Parkerized...HKP-02283$699.95 -
Tommy Built UMP Buffer Tube Adapter
Tommy Built
$249.95UMP hinge with Buffer Tube Mount For adapting an AR style Mil spec brace or stock Constructed of Nylon and has 6 adjustable positions. Adapter Only, Stocks in the pictures are for reference.HKP-19967$249.95 -
H&K HK UMP/USC Rear Sight Support Roll Pin
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 -
H&K UMP (.45 ACP) Magazine Locking Plate
H&K Heckler & Koch
$9.95HK UMP .45 Magazine Locking Plate.HKP-16338$9.95 -
H&K UMP (.45 ACP) Parts Kit - Extended Demilled Rear Receiver Section - Used
H&K Heckler & Koch
$4,499.95HK German UMP .45 Parts Kit- Used PD Trade-In UMP .45 German parts kit complete with all the factory HK parts minus the receiver. PD trade-ins are in good shape. Each UMP .45 parts kit includes: UMP .45 barrel UMP front sight assembly UMP cocking hand...HKP-00589$4,499.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch
H&K Heckler & Koch
$36.95HK UMP & USC Bolt Catch New HK German lower. Compatible with: HK UMP HK USCHKP-01897$36.95 -
H&K USC/SL8 (.45 ACP/5.56/.223) Rear Sight Spring
H&K Heckler & Koch
$9.95Factory German Rear Sight Spring For The USC and SL8HKP-16516$9.95 -
HDPS HK UMP (.40 S&W/.45 ACP) Birdcage Flash Hider
HDPS
$154.95US 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 anticipated HDPS bird cage style UMP flash hider. HK UMP .45...HKP-02694$154.95 -
HDPS HK USC, UMP Stock Block C Eyelet / Thumb Screw
HDPS
$169.95Great 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 hinge part number FSM-TB (push button folding stock)...HKP-20688$169.95 -
HK G36/SL8/USC/UMP Rear Sight Screw
H&K Heckler & Koch
$8.95HK G36, SL8 & USC, UMP Rear Sight ScrewRear sight screw to retain HK G38/Sl8 & USC/UMP rear sights housings to the rear sight base. G36, SL8 USC, UMPHKP-16382$8.95 -
HKP HK UMP (.40 S&W) 15 Round Magazine
HKP HK Parts
$49.95UMP, SMG .40 Cal 15 Round Magazine - USEach ultra compact 15 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliberP conversions. Each magazine features, steel feed lips, enhanced polymer contruction and all...HKP-17584$49.95 -
HKP Single Point Leather & Cotton Sling
HKP HK Parts
$59.95Single Point Leather & Cotton Sling Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a...HKP-21321-M$59.95 -
HKP Single Point Sling - ACU Digital Camo
HKP HK Parts
$29.95HK single point bungee sling for use on all HK & other firearm applications. This super high quality sling is a must have for those that prefer operating with a single point sling over the more traditional 3 point HK sling.HK Single Point Sling...HKP-15041$29.95 -
JMAC Universal M-LOK Skeleton Forward Grip
JMAC Customs
$89.95JMAC Universal M-LOK Skeleton Forward Grip Can be used as a forward grip or a handstop! Features: Reversible and Lightweight M-Lok Compatible (Requires 2 slots) Fits in and across M-Lok Slots Includes mounting hardware 7075 T6 Aluminum Hard Coat...HKP-21240$89.95 -
Omega HK UMP .45 ACP Barrel - 3 Lug
OMEGA
$449.95Omega HK UMP .45 ACP Barrel 3 Lug Barrel New .45 cal barrel for the UMP or Omega firearms. This is the newest barrel for the UMP to hit the market that will come with a removeable 3 lug adapter. The 3 lug adapter will be the same spec as the MP5 3 lug,...HKP-21070$449.95 -
USA HK UMP Left Hammer Spring
USA
$9.95HK UMP, USC - Left Side Hammer Spring For All Lowers New U.S hammer spring- Left Side A high wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Fits all: HK UMP models 45, .40 & 9mm USC .45 and...HKP-20840$9.95 -
B&T HK UMP 5 Prong Flash Hider - Black
B&T Brugger & Thomet
$129.95B&T HK UMP 5 Prong Flash Hider Fits all HK UMP .45 & UMP .40 flanged barrels. Each flash hider includes the proper quick detach system to take the flash hider on and off. Each flash hider features a 5 prong design. Specifications: Color:...HKP-16891$129.95 -
$24.95 -
H&K HK UMP 30 Round .40 Magazine - LEO Marked
H&K Heckler & Koch
$79.9530 Round Magazine - LEO Marked - Used - UMP .40 S/W Each 30 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliber conversions. Used in good condition. The perfect option for those that like to collect LEO...HKP-20651$79.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Floor Plate
H&K Heckler & Koch
$9.95HK German UMP Floorplate For All UMP Magazines Fits all HK UMP Magazines: UMP .45 UMP .40 UMP 9mmThese can become cracked or broken with use or drops onto hard surfaces.HKP-16493$9.95 -
H&K UMP (9mm) Magazine Spring - 30 Round
H&K Heckler & Koch
$14.95New HK German UMP 9mm Magazine Spring For UMP 30 Round 9mm Magazine. Perfect for spares and to have on hand as these are a consumable part.HKP-16563$14.95 -
Out Of Stock
H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - 3 Position
H&K Heckler & Koch
$0.00HK Ratched Wheel Notched Disk For 3 Position Lowers Compatible with: HK G36 HK UMPHKP-01854$0.00