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 - HKP HK UMP 2 Position Lower Grip Frame - Black - HKP-19382 HK UMP 2 Position Lower Grip Frame

    HK UMP 2 Position Lower Grip Frame

    HKP HK Parts

    $179.95
    UMP - 2 Position Lower Grip Frame New UMP Lower. 2 position settings (S,F). Perfect for all your own internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Each lower fits & works with the 45, 40 & 9mm calibers using...
    $179.95
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  • Used - H&K UMP (.45 ACP) 25 Round Magazine - German LEO Markings - Used - HKP-17917
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    HK UMP (.45 ACP) 25 Round Magazine - German LEO Markings - Used

    H&K Heckler & Koch

    $149.95
    German HK UMP .45 25 Round Magazine - Used Used PD trade in HK German UMP .45 cal 25 Round Factory Magazines. These magazines will fit all UMP factory firearms as well as the USC's that have been converted to accept UMP magazines. A perfect compliment...
    $149.95
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  • New - HK UMP .45 Magazine Locking Plate - HKP-20136 HK UMP Magazine Locking Plate - .45 ACP - US
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    HK UMP Magazine Locking Plate - .45 ACP - US

    USA

    $6.95
    HK UMP .45 Magazine Locking Plate   Made in the USA
    $6.95
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    $6.95
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  • New - H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - Safe/Semi - HKP-16361 HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - Safe/Semi
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    HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - Safe/Semi

    H&K Heckler & Koch

    $14.95
    HK Ratched Wheel, Notched Disk G36, SL8 0,1 (Safe & Fire) Only Compatible With: 0,1 or S,F only: HK UMP HK USC HK G36 HK SL8
    $14.95
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  • New - Holosun 510 Series Open Reflex Sight - Picatinny Mount - HKP-21656-M Holosun 510 Series Open Reflex Sight - Picatinny Mount
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    Holosun 510 Series Open Reflex Sight - Picatinny Mount

    Holosun

    $354.95
    Holosun 510 Series Open Reflex Sight - Universal Picatinny Mount The HS510C is a versatile open reflex optic designed for long gun applications. HS510C is at home on carbines, PCCs, and shotguns due its durable design. HS510C features and aluminum...
    $354.95
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  • New - Omega HK UMP Rear Sight Complete - HKP-21266
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    Omega HK UMP Rear Sight Complete

    OMEGA

    $39.95
    Omega 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...
    $39.95
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  • Out Of Stock
    New - H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Index Plate Compression Spring - HKP-16496

    HK UMP, USC, G36, SL8 Compression Spring - Index Plate

    H&K Heckler & Koch

    $7.95
    H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Index Plate Compression Spring
    $7.95
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  • Out Of Stock
    Used - H&K USC/SL8 (.45 ACP/5.56/.223) Buttstock Screw - HKP-01649 HK USC, SL8 Buttstock Allen Screw

    HK USC, SL8 Buttstock Allen Screw

    H&K Heckler & Koch

    $12.95
    Buttstock Allen Screw For HK USC Or HK SL8 rifles. This is the screw that holds the stock assembly onto the upper receiver of the HK USC & SL8.Great for replacements or to have as spares. This item is factory HK and a common spare.
    $12.95
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    New - B&T 1/2x28 to Tri-lug Adapter for 9mm - HKP-21752 Tri-Lug Adapter - 1/2x28 RH to Tri-Lug - 9mm - B&T

    Tri-Lug Adapter - 1/2x28 RH to Tri-Lug - 9mm - B&T

    B&T Brugger & Thomet

    $125.00
    B&T 1/2x28 to Tri-Lug Adapter for 9mm Convert any 1/2x28 RH 9mm threaded barrel to the HK spec. tri-lug with B&T's Swiss-made adapter adapter threaded 1/2x28. Compatible With the Following 9mm Firearms: HK MP5, MP5K, SP5, SP5K HK UMP...
    $125.00
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    $125.00
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    New - B&T Aimpoint ACRO / NANO 30mm QD Mount - HKP-21742 Picatinny Optic Mount - 30mm - Aimpoint ACRO / NANO

    Picatinny Optic Mount - 30mm - Aimpoint ACRO / NANO

    B&T Brugger & Thomet

    $98.00
    B&T Aimpoint ACRO / NANO 30mm 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...
    $98.00
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    $98.00
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  • New - Aimpoint ACRO / NANO 22mm Picatinny QD Mount - HKP-21728 Picatinny Optic Mount - Low Profile - ACRO, NANO
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    Picatinny Optic Mount - Low Profile - ACRO, NANO

    B&T Brugger & Thomet

    $115.00
    B&T Brugger and Thomet Aimpoint ACRO / NANO 22mm Low 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...
    $115.00
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