Small Parts

Small Parts

Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.

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  • New - H&K HK USP Expert Bobbed Hammer - HKP-18198 HK USP Expert Bobbed Hammer
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    HK USP Expert Bobbed Hammer

    H&K Heckler & Koch

    $29.95
    USP Expert Bobbed Hammer Old Style The USP Expert Hammer works with HK USP Expert variants. Compatible With: HK USP Expert 9mm HK USP Expert 40 HK USP Expert 45
    HKP-18198
    $29.95
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  • New - HK G41 Firing Pin Spring - HKP-16060
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    HK G41 Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    HK G41 Firing Pin Spring Compatible With: HK G41
    HKP-16060
    $9.95
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    $9.95
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  • New - H&K HK Mark 23 Hammer - HKP-01578
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    HK Mark 23 Hammer

    H&K Heckler & Koch

    $79.95
    HK Mark 23 Hammer Factory new hammer for the Mark 23 or SOCOM pistol.
    HKP-01578
    $79.95
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  • New - H&K HK P2000 Magazine Disconnect Lever Axle - HKP-16648
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    HK P2000 Magazine Disconnect Lever Axle

    H&K Heckler & Koch

    $5.95
    H&K HK P2000 Magazine Disconnect Lever Axle
    HKP-16648
    $5.95
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  • New - H&K HK USP Old Style Complete Sear - HKP-16991 HK USP Complete Sear - Old Style
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    HK USP Complete Sear - Old Style

    H&K Heckler & Koch

    $59.95
    H&K HK USP Old Style Complete Sear This sear is specific to the USP 9mm-Old Style.
    HKP-16991
    $59.95
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  • New - H&K HK USP/USPC Complete Mag Lockout Device - HKP-16397 HK USP, USP Compact Complete Mag Lockout Device
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    HK USP, USP Compact Complete Mag Lockout Device

    H&K Heckler & Koch

    $19.95
    H&K HK USP/USPC Complete Mag Lockout Device Easily installs and replaces the existing lanyard to the newer style lock out upgrade for the magazine lockout. Used to comply with certain state's laws and for added safety in some conditions and...
    HKP-16397
    $19.95
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  • Out Of Stock
    New - H&K HK USP/USPC Old Style Hammer - HKP-02766 HK USP, USP Compact Old Style Hammer

    HK USP, USP Compact Old Style Hammer

    H&K Heckler & Koch

    $0.00
    HK USP & USPC Variants 1-4, 9, & 10 Old Style Hammer Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W & .357 HK USP Compact .45 ACP Any USP pre-1995 with the old-style sear...
    HKP-02766
    $0.00
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  • New - HKP HK 21 (7.62x51/.308) Feed Mechanism Latch Lever - HKP-00235 HK21 Feed Mechanism Latch Lever
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    HK21 Feed Mechanism Latch Lever

    Michaels Machines

    $69.95
    HKP HK21 Feed Mechanism Latch Lever - 7.62x51 / .308 Replacement feed mechanism latch lever for HK21 belt-fed platforms chambered in 7.62x51 and .308. Designed to interface with the feed assembly and support proper operation of the HK21 system...
    HKP-00235
    $69.95
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  • Out Of Stock
    New - H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Handle - HKP-00243 H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Handle || HKP-00243 || HKPARTS

    HK21E, HK23E Barrel Handle - 7.62x51 / .308, 5.56 / .223

    H&K Heckler & Koch

    $79.95
    HK German Factory HK21E/23E & HK11E/13E Barrel Handle - New Factory German fiberglass/polymer extended E barrel handle. This is also considered an upgrade for older style HK21 barrel handles Compatible With: HK23E HK21E HK11E HK13E MM23E, 21E,...
    HKP-00243
    $79.95
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  • Out Of Stock
    New - H&K 21E/PSG1/MSG90 (7.62x51/.308) & (5.56/.223) Factory Extractor - HKP-00250 HK21, PSG1, MSG90 Extractor - Factory - 7.62x51 / .308, 5.56 / .223

    HK21, PSG1, MSG90 Extractor - Factory - 7.62x51 / .308, 5.56 / .223

    H&K Heckler & Koch

    $129.95
    HK21E, 11E, PSG1, MSG90 Factory German HK Extractor
    HKP-00250
    $129.95
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    $129.95
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  • New - H&K MP5 40/10 Recoil Rod Bushing - Black - HKP-00441 HK MP5 Recoil Rod Bushing - 10mm / .40 S&W / .357 SIG
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    HK MP5 Recoil Rod Bushing - 10mm / .40 S&W / .357 SIG

    H&K Heckler & Koch

    $9.95
    New HK German MP5 40/10/.357 Recoil Rod Guide Ring Bushing For all MP5 40/10 & MP5F Recoil Rods. These will wear and become brittle and torn with age and use. A great item to have on hand for spare parts.
    HKP-00441
    $9.95
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  • New - H&K CC9 Firing Pin Return Spring - HKP-22137
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    HK CC9 Firing Pin Return Spring

    H&K Heckler & Koch

    $5.95
    H&K CC9 Firing Pin Return Spring OEM firing pin return spring for the CC9 pistol that regulates firing pin movement during cycling to ensure reliable function.   Compatible With: HK CC9  
    HKP-22137
    $5.95
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