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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HKP HK UMP Flash Hider - Birdcage Style
HKP HK Parts
$49.95HKP HK UMP Flash Hider - Birdcage Style We are pleased to present the HKP UMP birdcage flash hider, designed specifically for our UMP 45 parts kit. This exceptional accessory not only protects exposed threads but also enhances the overall aesthetic of...HKP-21579$49.95 -
JMAC Customs 360 1/2-28 Facemount KeyMount (KeyMicro)
JMAC Customs
$104.95JMAC Customs 360 1/2-28 Facemount KeyMount (KeyMicro) With the advancement of suppressor technology and the popularity of the KeyMount mounting system, the 360-28F was designed to allow users to install a KeyMount compatible muzzle device on their...HKP-20141$104.95 -
B&T Unigrip Fixed With Storage Compartment - FDE
B&T Brugger & Thomet
$69.95B&T Vertical Grip - Fixed Style With Storage Compartment - TAN Swiss made B&T vertical for-end grip for picatinny. Made of tan polymer and includes a water tight storage compartment in the bottom of the grip. Will fit all mil-spec picatinny rails...HKP-18042$69.95 -
On Sale
B&T Unigrip QD with Bipod - Aluminum
B&T Brugger & Thomet
Now: $199.95Was: $224.99B&T Unigrip QD with Bipod - Aluminum This B&T foregrip features a retractable bipod for superior weapon stability in both the standing and prone positions. Specifications: Condition: Factory new Material: Aluminum Heat deflection...HKP-21596-MNow: $199.95Was: $224.99 -
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 -
HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin
HDPS
$39.95HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push 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 UMP (.45 ACP) Bolt Group
$369.95HK UMP .45 Tungsten Filled Semi Auto Bolt Group Complete. The semi auto bolt group is required for HK USC to HK UMP caliber conversions. Comes complete less the recoil assembly. Specifications: Tungsten filled Heat treated ParkerizedHKP-18751$369.95 -
HK UMP 9mm Barrel - Threaded - 3-Lug
Michaels Machines
$549.95HK UMP 9mm Barrel - Threaded - 3-Lug Specifications: 3Lug Threaded Compatible With: UMP 9mmHKP-02278$549.95 -
On Sale
HK UMP Stock w/ Receiver Section - Demilled - USED
H&K Heckler & Koch
Now: $159.95Was: $249.95HK UMP Stock w/ Receiver Section - Demilled - USED ROUGH CUTS AND MELTED SECTIONS. This HK UMP stock is a demilled part, ideal for replacement or custom projects. Compatible With: HK UMP THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR...HKP-99002Now: $159.95Was: $249.95 -
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 -
B&T SchleTek Carbon Cleaner 500 ml Aerosol
B&T Brugger & Thomet
$32.95B&T SchleTek Carbon Cleaner 500 ml Aerosol Time-saving removal of stubborn fouling. Special formula for heavily used firearms. Frequent and thorough gun cleaning is not only a prerequisite to achieve maximum performance with your firearm, but also a...HKP-21766$32.95 -
H&K 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 -
Out Of Stock
H&K MP5 40/10 Field Cleaning Kit
H&K / HK Parts
$79.95H&K MP5 40/10 Field Cleaning Kit This cleaning kit is a genuine HK factory cleaning kit and is recommended by HK for all HK pistol owners. Includes: Saf-T-Clad Cleaning Rod Accessory Adapter Section #8-32 Patch Holder Chamber Face...HKP-00340$79.95 -
H&K UMP (.40 S&W) Parts Kit - German - Used
H&K Heckler & Koch
$2,287.95HK German UMP .40 Cal Parts Kit - Used HK UMP .40 German parts kit complete with all the factory HK parts minus the receiver. Perfect for those who are doing a custom build or for spare parts. Click this link to complete your build with a DEFGUNZ...HKP-00588$2,287.95 -
Out Of Stock
HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block C
HDPS
$159.95HDPS HK UMP & USC Stock Block C Each unit comes with a new push-pin design. This is the part to use with the ACE hinge part number FSM-TB (push button folding stock) and non-folding push bottom (pig nose). This is just...HKP-02613$159.95 -
B&T HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider
B&T Brugger & Thomet
$129.95B&T HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider 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: Diameter Max 31 mm Length Max 73...HKP-16891$129.95 -
HK USC (.45 ACP) USC to UMP Conversion ACR Stock Block
$139.95HK USC To ACR Stock Adapter A new product that allows you to add the widely popular Remington ACR folding, adjustable stock to your USC-UMP conversion. This offering is for the stock block and hardware to attach your ACR stock for your HK USC when doing...HKP-17357$139.95 -
HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin
HKP HK Parts
$49.95HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin The original thumb screw version for all stock block B's.HKP-21504$49.95 -
Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete
$649.95Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete MM’s UMP tungsten filled UMP .40 bolt carrier. Heat treated, parkarized and polished for the best look and function possible, as an added bonus it now includes German HK internals which...HKP-20626$649.95 -
On Sale
H&K HK UMP & HK USC Extended Top Rail For Optics with Screws - USED - BLEMISHED
H&K Heckler & Koch
Now: $39.95Was: $99.95H&K HK UMP & HK USC Extended Top Rail For Optics with Screws - USED - BLEMISHED MINOR SCRATCHES. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-20502-BNow: $39.95Was: $99.95 -
Out Of Stock
H&K HK USC, UMP German Polymer Receiver Optic Rail
H&K Heckler & Koch
$0.00H&K HK USC, UMP German Polymer Receiver Optic Rail German HK USC, UMP polymer top Receiver Rail with mounting hardware. Includes: Factory HK rail 2 mounting screws Compatible With: HK German spec UMP USC upper receiversHKP-19616$0.00 -
HDPS HK UMP (.40 S&W/.45 ACP) 5 Prong Flash Suppressor
HDPS
$159.95HK UMP (.40 S&W/.45 ACP) 5 Prong Flash Suppressor This is the much anticipated HDPS 5-prong UMP 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...HKP-02368$159.95 -
Out Of Stock
MM HK UMP 9mm Conversion Kit - 16 inch Barrel
Michaels Machines
$889.95HK UMP 9mm Conversion Kit - US-Made UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in, with the...HKP-02284$889.95 -
B&T Angled Foregrip - Picatinny Mount - Universal
B&T Brugger & Thomet
$71.99B&T Angled Foregrip - Coyote Tan - Picatinny Mount For those shooters who prefer an angled foregrip, this grip is the perfect solution. The lugs at the end of the grip assure a firm rest for the supporting hand. The grip can be mounted easily onto...HKP-21392$71.99 -
B&T Multitasker Twist
B&T Brugger & Thomet
$59.95B&T Multitasker Twist Pen-shaped multitool for weapon maintenance and optics/sight adjustments. CNC machined from 6063 T-6 aluminum, Type III Mil-spec Anodized. Features: Aimpoint Micro T1/T2 turret adjuster on rear cap Pocket clip/light-duty...HKP-21747$59.95 -
On Sale
H&K HK UMP 30 Round .40 Magazine - LEO Marked - USED - BLEMISHED
H&K Heckler & Koch
Now: $39.95Was: $64.95H&K HK UMP 30 Round .40 Magazine - LEO Marked - USED - BLEMISHED VARYIED DEGREES OF APPEARANCE LIKE SHOWN IN PICTURE. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-20651-BNow: $39.95Was: $64.95 -
H&K UMP (9mm) Magazine Spring - 30 Round
H&K Heckler & Koch
$14.95H&K UMP (9mm) Magazine Spring - 30 Round Perfect for spares and to have on hand as these are a consumable part.HKP-16563$14.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Left
H&K Heckler & Koch
$9.95HK UMP & USC - Left Side Hammer Spring For All Lowers A high-wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With: HK UMP models 45, .40, & 9mm. USC .45 and other conversion...HKP-01898$9.95 -
H&K USC (.45 ACP) Magazine Follower
H&K Heckler & Koch
$12.95H&K USC (.45 ACP) Magazine Follower New HK German USC 10 Round magazine follower.HKP-16346$12.95 -
HKP HK UMP/USC 4 Piece M-Lok Set - Anodized
HKP HK Parts
$129.95HKP HK UMP/USC 4 Piece M-Lok Set - Anodized Upgrade your UMP and USC with the HK Parts 4-piece M-Lok set, designed to eliminate the hassle of snagging and shredding your knuckles on Picatinny rails. This exceptional set significantly expands the...HKP-21663-M$129.95 -
Out Of Stock
Omega HK UMP Rear Sight Complete
OMEGA
$39.95Omega HK UMP Rear Sight Complete: All the parts needed for the rear sight on a Gideon Shadow UMP style build. New USA made parts for your build. Will only work with Gideon Shadow. Locking screw will not work with a German UMP receiver, DEF Gunz or...HKP-21266$39.95 -
Wasatch Arms Keymount Muzzle Brake - Threaded 5/8x24
Wasatch Arms
$89.95Wasatch Arms Keymount Muzzle Brake - Threaded 5/8x24 The Wasatch Arms keymount brake is compatible with the Dead Air keymount system. The brake has no outisde flats, so there is no need for timing shims or crush washers...HKP-20298$89.95 -
Aimpoint Absolute Co-Witness T1 Mount
Aimpoint
$14.95Aimpoint - T1 Mount Absolute Co-Witness Features a machined recoil lug for consistent, repeatable mounting. Features: 6061 T6 aluminum Black anodized Machined recoil lug Compatible With: Aimpoint T1 / H1 Series opticsHKP-19334$14.95 -
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 -
Out Of Stock
HKP HK UMP (.40 S&W/.45 ACP/9mm) Paddle Mag Release - Extended
HKP HK Parts
$24.95UMP Paddle Magazine Release - Extended Billeted alloy UMP magazine release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. With this new metal mag release you get more surface area as well as a much...HKP-17919$24.95 -
HKP HK UMP 5 Prong Flash Hider - 5/8x24
HKP HK Parts
$67.95HKP HK UMP 5 Prong Flash Hider - 5/8x24 Compatible With: HK UMPHKP-21523$67.95 -
Out Of Stock
HKP HK UMP, USC & G36, SL8 Sear
HKP HK Parts
$14.95HK Complete Sear G36, UMP, USC, SL8 Made in the USA Compatible With: HK UMP HK USC HK G36 HK SL8HKP-19555$14.95 -
Michaels Machines HK UMP .45 Semi-Auto Bolt Group - Complete
Michaels Machines
$749.95Michaels Machines HK UMP .45 Semi-Auto Bolt Group - Complete MM’s UMP Tungsten filled UMP .45 bolt carrier complete. Heat treated, parkarized and polished for the best look and function possible, as an added bonus it now includes German HK...HKP-20627$749.95 -
H&K UMP (.40 S&W) 30 Round Magazine Housing
H&K Heckler & Koch
$69.95New HK UMP .40 30 Round Magazine Housing New 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 (.40 S&W) Bolt Group - Used
H&K Heckler & Koch
$649.95German UMP .40 factory F/A Bolt Group - Complete This item is used in very good shape or better.HKP-00601$649.95