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 - HK UMP/USC (.45 ACP) Extractor - HKP-02623 HK UMP, USC Extractor - .45 ACP

    HK UMP, USC Extractor - .45 ACP

    $39.95
    HK UMP & USC .45 Extractor Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once removed from the carrier, the spring tension is compromised,...
    HKP-02623
    $39.95
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  • New - HKP HK UMP (.40 S&W) 15 Round Magazine - HKP-17584 HK UMP Magazine - .40 S&W - 15 Round
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    HK UMP Magazine - .40 S&W - 15 Round

    HKP HK Parts

    $49.95
    UMP, SMG .40 Cal 15 Round Magazine - US ***Shown side by side with a standard capacity magazine Compact 15 round magazine for HK UMP .40 caliber carbines, SMG's, and USC-UMP .40 caliber conversions. Each magazine features steel feed lips and durable...
    HKP-17584
    $49.95
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  • New - HKP HK USP .45 ACP 16X1 LH Thread Protector - HKP-22177 HK USP Thread Protector - .45 ACP - 16X1 LH
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    HK USP Thread Protector - .45 ACP - 16X1 LH

    HKP HK Parts

    $19.95
    HKP HK USP .45 ACP 16X1 LH Thread Protector Thread protector for 16X1 left-hand .45 ACP barrels.   Compatible With: HK USP .45 & Compact HK45 & Compact HK UMP/USC Firearms with 16X1 left-hand threaded .45 ACP barrels NOT compatible...
    HKP-22177
    $19.95
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  • New - HKP HK UMP Enhanced Top Rail - Red - HKP-20812 HK UMP Enhanced Top Rail - Red
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    HK UMP Enhanced Top Rail - Red

    HKP HK Parts

    $49.95
    HKP HK UMP Enhanced Top Rail - Red HK 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. Includes: Each...
    HKP-20812
    $49.95
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  • New - HK UMP, USC Right Hammer Spring - HKP-19557
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    HK UMP, USC Hammer Spring - Right - US

    USA

    $9.95
    HK UMP & USC Right Side Hammer Spring For Lowers - USA
    HKP-19557
    $9.95
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  • New - HDPS HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger - HKP-02134 HK UMP, USC, G36, SL8 Trigger
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    HK UMP, USC, G36, SL8 Trigger

    HDPS

    $139.95
    HDPS US-Made Steel Trigger - USC & SL8 HDPS US-made triggers are ideal for meeting US 922r compliance as this counts as one of the needed parts when converting the HK USC to HK semi-auto UMP and the HK SL8 to semi-auto G36. Compatible...
    HKP-02134
    $139.95
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  • New - HKP HK UMP 9mm Barrel - Threaded 1/2x28 - 3-lug - HKP-18639 HK UMP Barrel - 9mm - Threaded 1/2x28 with 3 Lug - US
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    HK UMP Barrel - 9mm - Threaded 1/2x28 with 3 Lug - US

    HKP HK Parts

    $299.95
    HKP HK UMP 9mm Barrel - Threaded 1/2x28 - 3-lug HKP UMP 3-lug 1/2x28 threaded barrel. This is the perfect replacement for a worn out barrel or as a spare. With the 3-lug attachment point you can attach any suppressor or flash hider that is in-spec or you...
    HKP-18639
    $299.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Firing Pin Retainer Pin - HKP-01894
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    HK UMP Firing Pin Retainer Pin

    H&K Heckler & Koch

    $7.95
    HK UMP Firing Pin - Retainter Pin   This is the pin that trips the trip lever on the UMP lower.   Compatible With: HK UMP  
    HKP-01894
    $7.95
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  • New - Streamlight HK MR556/HK416 Protac 2.0 Rail Mount - HKP-21939 HK416, MR556 Optic Mount - Protac 2.0 - Picatinny, MLOK
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    HK416, MR556 Optic Mount - Protac 2.0 - Picatinny, MLOK

    Streamlight

    $169.99
    Streamlight Protac 2.0 Rail Mount for HK MR556 and HK416 The Streamlight ProTac 2.0 Rail Mount HP is a high-performance rail-mounted tactical light designed for long-gun applications. Producing 2,000 lumens and 100,000 candela, it delivers intense,...
    HKP-21939
    $169.99
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Release Lever Spring - HKP-01891
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    HK UMP Release Lever Spring

    H&K Heckler & Koch

    $9.95
    HK UMP Release Lever Spring For All UMP Lowers  
    HKP-01891
    $9.95
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  • New - HKP UMP/USC Extended Handguard - HKP-21679 HK UMP, USC Extended Handguard
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    HK UMP, USC Extended Handguard

    HKP HK Parts

    $249.95
    HKP UMP/USC Extended Handguard - Black Cerakote The HK Parts UMP extended handguard is the ultimate choice for your UMP or USC. M-LOK attachment points and a robust picatinny rail on the extended section provide accessory mounting points for any loud-out...
    HKP-21679
    $249.95
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  • New - HKP HK UMP Floor Plate - Black - HKP-17161 HK UMP Magazine Floorplate
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    HK UMP Magazine Floorplate

    HKP HK Parts

    $7.95
    HKP HK UMP Floorplate Compatible With: UMP .45 UMP .40 UMP 9mm These can become cracked or broken with use or drops onto hard surfaces. Made in the USA and counts as 1 US compliant part.
    HKP-17161
    $7.95
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