HK UMP/USC Series

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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  • H&K 5 Round HK USC .45 ACP Magazine - Black H&K 5 Round HK USC .45 ACP Magazine - Black
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    H&K 5 Round HK USC .45 ACP Magazine - Black

    H&K Heckler & Koch

    $57.95
    HK German Factory 5 Round USC .45 Magazine: That Will Fit All HK USC's. This is the only magazine that HK offers for the HK USC unless you want to upgrade to the USC-UMP style of conversions. Fits All HK USC Carbines
    HKP-20041
    $57.95
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    H&K HK G36/UMP Tactical Sling - Used
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    H&K HK G36/UMP Tactical Sling - Used

    H&K Heckler & Koch

    $0.00
    HK Factory G36 & UMP Tactical Sling. Black In Color. USED.
    HKP-00632
    $0.00
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  • H&K HK UMP .45 Conversion Kit H&K HK UMP .45 Conversion Kit
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    H&K HK UMP .45 Conversion Kit

    $1,099.95
    H&K HK UMP .45 Conversion Kit This kit optimizes the UMP platform by allowing the user swap between calibers in approximately 5 minutes. The Michael's machine semi-auto bolt pairs perfectly with the TPM and Gideon Shadow receivers as well as USC to...
    HKP-20623
    $1,099.95
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    H&K HK UMP Demilled Extended Rear Receiver Section H&K HK UMP Demilled Extended Rear Receiver Section
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    H&K HK UMP Demilled Extended Rear Receiver Section

    H&K Heckler & Koch

    $0.00
    HK German Factory UMP  Receiver Section - ExtendedThis is a demilled factory HK UMP rear receiver section that is perfect for the new Tom Bostic USC-UMP conversions. This section is the perfect length in order to do the USC/UMP conversion. Just in only...
    HKP-19798
    $0.00
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  • H&K HK USC 45 Barrel - Used H&K HK USC 45 Barrel - Used
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    H&K HK USC 45 Barrel - Used

    H&K Heckler & Koch

    $695.95
    Barrel - HK USC 45 in Exc + shape HK German factory USC 45 barrel in excellent + condition. Rare and hard to find. 
    HKP-20471
    $695.95
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    H&K HK USC, UMP German Polymer Receiver Optic Rail H&K HK USC, UMP German Polymer Receiver Optic Rail
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    H&K HK USC, UMP German Polymer Receiver Optic Rail

    H&K Heckler & Koch

    $0.00
    German HK USC, UMP Polymer Top Receiver Rail With Mounting Hardware.Each unit comes with the factory HK rail and 2 mounting screws. Fits all HK German spec UMP and USC upper receivers.
    HKP-19616
    $0.00
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    H&K MP5K, SP89, SP5K Single Point Sling
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    H&K MP5K, SP89, SP5K Single Point Sling

    H&K Heckler & Koch

    $0.00
    HK Factory German Single Point Sling This is the only HK factory single-point sling ever made or offered by HK. Each sling can be used in several applications and on several weapon systems, HK and non-HK alike. This attaches to one mounting point by way...
    HKP-00371
    $0.00
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  • H&K UMP (.40 S&W) Bolt Group - Used H&K UMP (.40 S&W) Bolt Group - Used
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    H&K UMP (.40 S&W) Bolt Group - Used

    H&K Heckler & Koch

    $649.95
    German UMP .40 factory F/A Bolt Group - Complete This item is used in very good shape or better.
    HKP-00601
    $649.95
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  • H&K UMP (.40 S&W) Conversion Kit - Used H&K UMP (.40 S&W) Conversion Kit - Used
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    H&K UMP (.40 S&W) Conversion Kit - Used

    H&K Heckler & Koch

    $1,087.95
    HK UMP .40 Caliber Conversion Kit This UMP conversion kit provides the necessary components to convert .45 sub-guns to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub-guns. This is a simple, drop-in conversion requiring a...
    HKP-00729
    $1,087.95
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  • H&K UMP (.40 S&W) Parts Kit - German - Used H&K UMP (.40 S&W) Parts Kit - German - Used
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    H&K UMP (.40 S&W) Parts Kit - German - Used

    H&K Heckler & Koch

    $2,499.95
    HK 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. Please Note: Restricted mag state residents will need to...
    HKP-00588
    $2,499.95
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    H&K UMP (.40 S&W/.45 ACP/9mm) 4 Position Burst Lower (0,1,2,Full) H&K UMP (.40 S&W/.45 ACP/9mm) 4 Position Burst Lower (0,1,2,Full)
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    H&K UMP (.40 S&W/.45 ACP/9mm) 4 Position Burst Lower (0,1,2,Full)

    H&K Heckler & Koch

    $0.00
    New HK German 4 Position (0,1,2,Full) Burst LowerFits All HK UMP's. This item can be adapted for use on the USC-UMP Conversion if the F/A internals are removed & the USC (semi-auto) internals are installed. This item is a very popular item for the...
    HKP-00593
    $0.00
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    H&K UMP (.40 S&W/.45 ACP/9mm) Demilled Rear Receiver Section H&K UMP (.40 S&W/.45 ACP/9mm) Demilled Rear Receiver Section
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    H&K UMP (.40 S&W/.45 ACP/9mm) Demilled Rear Receiver Section

    H&K Heckler & Koch

    $0.00
    HK UMP De-milled Receiver SectionThis is a demilled factory HK UMP rear receiver section that is perfect for the new Tom Bostic USC-UMP conversions. This section is the perfect length in order to do the USC/UMP conversion. Last one available.
    HKP-01659
    $0.00
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    H&K UMP (.40 S&W/.45 ACP/9mm) Folding Stock - Used H&K UMP (.40 S&W/.45 ACP/9mm) Folding Stock - Used
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    H&K UMP (.40 S&W/.45 ACP/9mm) Folding Stock - Used

    H&K Heckler & Koch

    $0.00
    HK UMP Folding ButtstockUsed taken from German HK police department guns, German Heckler & Koch folding stock. This is a required part for the USC-UMP Conversion (stock block B). All UMP folding stocks come with HK date code.
    HKP-02222
    $0.00
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    H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1) H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1)
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    H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1)

    H&K Heckler & Koch

    $0.00
    UMP Pistol Grip Stripped & Incomplete - 2 Position (0,1) PictogramNew HK German manufacture, rare and hard to find. If you have an HK USC you can use this housing with the USC lower internals for a complete USC to UMP lower assembly that you can use...
    HKP-17815
    $0.00
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    H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1,2,F) H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1,2,F)
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    H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1,2,F)

    H&K Heckler & Koch

    $0.00
    Stripped UMP Pistol Grip - 4 Position (0,1,2,D) Pictogram
    HKP-17817
    $0.00
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    H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1,F) H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1,F)
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    H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1,F)

    H&K Heckler & Koch

    $0.00
    UMP Pistol Grip Stripped & Incomplete - 3 Position (0,1,F) Pictogram New German HK UMP 3 position lower.
    HKP-17816
    $0.00
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    H&K UMP (.45 ACP) Barrel - Used H&K UMP (.45 ACP) Barrel - Used
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    H&K UMP (.45 ACP) Barrel - Used

    H&K Heckler & Koch

    $0.00
    HK UMP 45 ACP 8 Inch Barrel - German German HK Cold Hammer Forged Barrel- UsedUsed PD trade in authentic German HK UMP .45 barrel. Polygonal and cold hammer forged. A rare part as the barrel is not a part that can be bought from HK separately. The only...
    HKP-14955
    $0.00
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    H&K UMP (.45 ACP) Bolt Group - Used H&K UMP (.45 ACP) Bolt Group - Used
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    H&K UMP (.45 ACP) Bolt Group - Used

    H&K Heckler & Koch

    $0.00
    German HK UMP .45 Factory Full Auto Bolt Group Complete Used.Used German bolt carrier complete that is tungsten filled and the factory correct HK UMP .45 cal bolt group. Comes less the recoil assembly.
    HKP-01231
    $0.00
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    H&K UMP (9mm) Parts Kit H&K UMP (9mm) Parts Kit
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    H&K UMP (9mm) Parts Kit

    H&K Heckler & Koch

    $0.00
    HK UMP 9mm Parts Kit - Like New Condition Front Sight 9mm Bolt Group Complete 9mm Ejector Lever Folding Stock 0,1,F Lower Trigger Group 1 x 30 round 9mm Factory Magazine 8 Inch - 9mm Barrel Barrel Retaining Pin Cocking Tube Support Rear Push Pin **...
    HKP-02425
    $0.00
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    H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) 3 Position Selector Lever - Right
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    H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) 3 Position Selector Lever - Right

    H&K Heckler & Koch

    $0.00
    HK UMP & G36 Right Safety Selector Lever For All 3 Position Lowers Only  
    HKP-01888
    $0.00
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    H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Burst Lower Slide (0,1,2)
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    H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Burst Lower Slide (0,1,2)

    H&K Heckler & Koch

    $0.00
    HK G36 & UMP Slide For 3 Position Burst Only Lowers - 0,1,2 Only  Compatible With: HK UMP HK G36    
    HKP-01887
    $0.00
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    H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Safety Selector Lever (0,1,F)
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    H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Safety Selector Lever (0,1,F)

    H&K Heckler & Koch

    $0.00
    HK 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 G36
    HKP-01889
    $0.00
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    H&K UMP/USC (.40 S&W/.45 ACP/9mm) 3 Position Navy Full Lower (0,1,) H&K UMP/USC (.40 S&W/.45 ACP/9mm) 3 Position Navy Full Lower (0,1,)
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    H&K UMP/USC (.40 S&W/.45 ACP/9mm) 3 Position Navy Full Lower (0,1,)

    H&K Heckler & Koch

    $0.00
    HK UMP 3 Position Navy LowerNew German Heckler & Koch UMP Navy Lower. 3 position settings (0, 1, Full) 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. Each lower fits...
    HKP-00592
    $0.00
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    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Handle Assembly - Used
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    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Handle Assembly - Used

    H&K Heckler & Koch

    $0.00
    HK German USC/UMP Cocking Handle Assembly - UsedIncludes Cocking Handle Support Spring Cocking Lever Support Roll Pin for Cocking Handle
    HKP-00255
    $0.00
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    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever
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    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever

    H&K Heckler & Koch

    $0.00
    HK UMP & USC Cocking Lever New HK German part. Compatible With: HK UMP HK USC
    HKP-01884
    $0.00
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    H&K UMP/USC/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Hand Stop Filler Piece H&K UMP/USC/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Hand Stop Filler Piece
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    H&K UMP/USC/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Hand Stop Filler Piece

    H&K Heckler & Koch

    $0.00
    HK German Hand Stop filler piece for UMP and G36
    HKP-17779
    $0.00
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    H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Rear Sight Support H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Rear Sight Support
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    H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Rear Sight Support

    H&K Heckler & Koch

    $0.00
    HK UMP,USC SL8/G36 Rear Sight Support - Incomplete
    HKP-16362
    $0.00
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    H&K USC (.45 ACP) 10 Round Factory Magazine Body - BODY ONLY H&K USC (.45 ACP) 10 Round Factory Magazine Body - BODY ONLY
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    H&K USC (.45 ACP) 10 Round Factory Magazine Body - BODY ONLY

    H&K Heckler & Koch

    $0.00
    HK USC .45 10 Round Magazine Body.This is the only magazine body that HK offers for the HK USC.Fits All HK USC Carbines.
    HKP-16370
    $0.00
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    HK UMP (.40 S&W/.45 ACP/9mm) Paddle Mag Release
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    HK UMP (.40 S&W/.45 ACP/9mm) Paddle Mag Release

    $9.95
    UMP Paddle Magazine Release - US MadeNew UMP Mag release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. Simple & easy to install no gunsmith needed or required.Fits all:  UMP .45 UMP .40 UMP...
    HKP-18773
    $9.95
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    $9.95
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  • HK UMP .45 15 Round Magazine Spring HK UMP .45 15 Round Magazine Spring
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    HK UMP .45 15 Round Magazine Spring

    HKP HK Parts

    $9.95
    HK UMP .45 15 Round Magazine Spring Perfect for spares and to have on hand as these are consumable item that needs to be replaced from time to time. A must have item if you own a USC/UMP conversion or UMP.
    HKP-20679
    $9.95
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    HK UMP Paddle Mag Release Complete Assembly HK UMP Paddle Mag Release Complete Assembly
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    HK UMP Paddle Mag Release Complete Assembly

    $19.95
    UMP Paddle Magazine Release - US Made - Assembly CompleteNew UMP Mag release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. Simple & easy to install no gunsmith needed or required.Fits all: ...
    HKP-19499
    $19.95
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    $19.95
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    HK UMP/USC (.40 S&W) Extractor HK UMP/USC (.40 S&W) Extractor
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    HK UMP/USC (.40 S&W) Extractor

    $39.95
    New US-Made USC Or UMP .40 Extractor This part is a repair and replacement item, as these are prone to breakage, and it's a part that's hard to find and a great item to have on hand. Please Note: HK considers this a high wear and replacement...
    HKP-02624
    $39.95
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    $39.95
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    HK UMP/USC (.40 S&W/.45 ACP/9mm) Ejector Lever HK UMP/USC (.40 S&W/.45 ACP/9mm) Ejector Lever
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    HK UMP/USC (.40 S&W/.45 ACP/9mm) Ejector Lever

    $34.95
    HK UMP, USC Ejector LeverEach Unit Fits All Calibers of UMP & USC Firearms. A Great Spare To Have On Hand As They Are Prone To Shearing Off With Use And Must Be Replaced. Perfect for the Omega and Tommby Built Tactical builds.Compatibility: UMP .45...
    HKP-18508
    $34.95
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    $34.95
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    HK USC, HK UMP Cocking Handle Assembly
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    HK USC, HK UMP Cocking Handle Assembly

    HKP HK Parts

    $49.95
    Includes Cocking Handle Support Spring Cocking Lever Support Roll Pin for Cocking Handle
    HKP-19155
    $49.95
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    $49.95
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