UMP / USC Series

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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  • New - HDPS HK UMP (.40 S&W/.45 ACP) 5 Prong Flash Suppressor - HKP-02368
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    HK UMP Flash Hider - 5 Prong - 10mm, .40, .45

    HDPS

    $159.95
    HK UMP Flash Hider - 5 Prong - 10mm, .40, .45 Designed to fit flanged UMP barrels. Will fit factory HK UMP barrels as well as the UMP 10mm/.40/.45/ US-made barrels offered by HK Parts. Made in USA Compatible With: HK UMP .40 S&W HK UMP .10mm HK UMP ...
    $159.95
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  • New - MM HK UMP 9mm Conversion Kit - HKP-02286 HK UMP Caliber Conversion to 9mm Kit - 7.87" Barrel - 30 Round Magazine
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    HK UMP Caliber Conversion to 9mm Kit - 7.87" Barrel - 30 Round Magazine

    Michaels Machines

    $1,293.95
    MM HK UMP, USC Conversion Kit - 9mm This 9mm conversion kit is designed for USC-to-UMP builds and allows existing .45 ACP conversions to be changed over to 9mm with a simple, drop-in parts swap. All components install in minutes and are built to...
    $1,293.95
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  • New - B&T Aimpoint ACRO P-2 w/ B&T Skeleton Mount 39mm - HKP-21857-M Picatinny Optic Mount - 39mm - Skeleton - Aimpoint ACRO P-2
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    Picatinny Optic Mount - 39mm - Skeleton - Aimpoint ACRO P-2

    B&T Brugger & Thomet

    $737.95
    B&T Aimpoint ACRO P-2 w/ B&T Skeleton Mount 39mm The Aimpoint Acro P-2, paired with the B&T Skeleton Mount (39mm), takes the ACRO reflex sight to new heights in durability and reliability. It's fully enclosed design protects against rain, mud...
    $737.95
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    New - B&T 39mm Picatinny QD Skeleton Mount for Aimpoint T-Series - HKP-21771 Picatinny Optic Mount - 39mm - Skeleton - Aimpoint T-Series

    Picatinny Optic Mount - 39mm - Skeleton - Aimpoint T-Series

    B&T Brugger & Thomet

    $150.00
    B&T 39mm Picatinny QD Skeleton Mount for Aimpoint T-Series The B&T QD skeleton mount for Aimpoint T-Series offers a 39mm elevated profile for improved sight alignment, ideal for night vision setups requiring clearance over forward-mounted IR...
    $150.00
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  • Out Of Stock
    New - B&T Aimpoint ACRO / NANO 39mm QD Mount - HKP-21761 Picatinny Optic Mount - 39mm - Aimpoint ACRO / NANO

    Picatinny Optic Mount - 39mm - Aimpoint ACRO / NANO

    B&T Brugger & Thomet

    $85.00
    B&T Aimpoint ACRO / NANO 39mm QD Mount The B&T ACRO NANO optic mount is a universal QD mount for any firearm featuring a Picatinny top rail.  Keep your optic profile compact with this Swiss made mount. Compatible With: Any firearm featuring...
    $85.00
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    $85.00
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  • New - Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete - HKP-20626 Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete
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    Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete

    $649.95
    Michaels 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...
    $649.95
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  • New - Aimpoint Absolute Co-Witness T1 Mount - HKP-19334 Picatinny Optic Mount - Aimpoint T1 - Absolute Co-Witness
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    Picatinny Optic Mount - Aimpoint T1 - Absolute Co-Witness

    Aimpoint

    $14.95
    Aimpoint - 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 optics Micro T-1 MIL-STD...
    $14.95
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  • New - H&K USC (.45 ACP) Bolt Group- Incomplete - HKP-17011 HK USC (.45 ACP) Bolt Group- Incomplete
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    HK USC (.45 ACP) Bolt Group- Incomplete

    H&K Heckler & Koch

    $699.95
    HK German USC .45 Factory Semi Bolt - Incomplete HK German USC, Omega GS 45 caliber bolt carrier that is stripped. Just add the firing pin, firing pin spring, extractor and firing pin retaining pin for a complete bolt. Made in Germany.
    $699.95
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  • Picatinny Optic Mount Shield, Aimpoint T2, H2 - S.W.O.R.D.S Picatinny Optic Mount Shield, Aimpoint T2, H2 - S.W.O.R.D.S
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    Picatinny Optic Mount Shield, Aimpoint T2, H2 - S.W.O.R.D.S

    Frost Defense

    $239.95
    Aimpoint T-2, H-2 Optic Mount - S.W.O.R.D.S - Picatinny Mount The S.W.O.R.D.S Enhanced optic shield designed for Aimpoint T2/H2 red dot sights. This patent-pending mount system provides robust glare and impact protection by surrounding the ocular and...
    $239.95
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    $239.95
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  • ACR Folding Stock - Telescopic 7 Position - Picatinny Rail ACR Folding Stock - Telescopic 7 Position - Picatinny Rail
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    ACR Folding Stock - Telescopic 7 Position - Picatinny Rail

    F5 MFG

    $249.95
    F5 ACR Folding Stock - Picatinny Mount - Universal The F5 ACR folding stock easily attached to any Picatinny rail, giving the user the versatility of swapping between any Picatinny equipped firearm. Features: 7-position...
    $249.95
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  • New - HK UMP .45 15 Round Magazine Spring - HKP-20679 HK UMP 45 Magazine Spring - .45 ACP - 15 Round - US
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    HK UMP 45 Magazine Spring - .45 ACP - 15 Round - US

    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.
    $9.95
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  • New - Wasatch Arms Keymount Muzzle Brake - Threaded 5/8x24 - HKP-20298 Keymount Muzzle Brake - Threaded 5/8x24
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    Keymount Muzzle Brake - Threaded 5/8x24

    Wasatch Arms

    $89.95
    Wasatch 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...
    $89.95
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