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 USC (.45 ACP) Lower Locking Lever Axle - HKP-16376
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    HK USC Locking Lever Axle - .45 ACP

    H&K Heckler & Koch

    $29.95
    HK USC Lower Locking Lever Axle A great item to have on hand as spares. New German HK. Compatible With: All USC lowers
    $29.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch - HKP-01897
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    HK UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch

    H&K Heckler & Koch

    $36.95
    HK UMP & USC Bolt Catch  New HK German lower. Compatible With: HK UMP HK USC
    $36.95
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    $36.95
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  • New - H&K MP5 40/10 -4 Roller - HKP-00337 HK MP5 40, 10 Roller - -4
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    HK MP5 40, 10 Roller - -4

    H&K Heckler & Koch

    $19.95
    HK German MP5 40/10 -4 roller Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production.  Please Note: The price listed is per roller. Order 2 (pair) for a complete set for...
    $19.95
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  • New - Talon Grip HK VP9SK Granulate - Small - Black - HKP-20261 HK VP9SK Grip Wrap for Small Backstraps - Granulate
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    HK VP9SK Grip Wrap for Small Backstraps - Granulate

    Talon Grip

    $19.99
    TALON Grip - H&K VP9SK - Granulate Black - Small Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...
    $19.99
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  • New - H&K HK Mark 23 Decocking Spring - HKP-02322
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    HK Mark 23 Decocking Spring

    H&K Heckler & Koch

    $6.95
    HK Mark 23 Decocking Spring  
    $6.95
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    $6.95
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  • New - H&K HK MR556/MR762/417 Index Pin Spring - HKP-17021
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    HK417, MR556, MR762 Index Pin Spring

    H&K Heckler & Koch

    $7.95
    H&K HK MR556/MR762/417 Index Pin Spring   Compatible With: HK MR556 HK 417 HK MR762  
    $7.95
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  • Out Of Stock
    New - HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin - HKP-16339 HK UMP, USC Stock Block B - Push Pin

    HK UMP, USC Stock Block B - Push Pin

    HDPS

    $39.95
    HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin This sling pin will replace the current production stock Block B hardware and upgrade to the Sling Pin Pull Style version.
    $39.95
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  • New - RCM MP5 40/10 Extractor - HKP-01969 HK MP5 Extractor - 10mm / .40 S&W
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    HK MP5 Extractor - 10mm / .40 S&W

    RCM

    $34.95
    MP5 40 & 10mm Extractor - US Made This part is made to the exact same specs as the HK German extractor final polish included. It is also a great upgrade for the clone CA and Vector builds.
    $34.95
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  • Out Of Stock
    New - KCI HK MP5 Locking Plate - HKP-21377 HK MP5 Magazine Locking Plate - 30 Round

    HK MP5 Magazine Locking Plate - 30 Round

    KCI

    $3.49
    KCI HK MP5 Locking Plate Spare locking plate for KCI MP5 30 round magazines. Compatible With: HK MP5
    $3.49
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    $3.49
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  • New - H&K VP9, VP40 Left Side Grip Panel - Large - OD Green - HKP-19174 HK VP9, VP40 Left Side Grip Panel - Large - OD Green
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    HK VP9, VP40 Left Side Grip Panel - Large - OD Green

    H&K Heckler & Koch

    $24.99
    H&K VP9, VP40 Left Side Grip Panel - Large - OD Green New HK German manufactured. Left side size large. Perfect for spare or for custom stippling projects. Drop-in part for rour HK VP Pistol. Compatible With: HK VP9 HK VP9A1 F, VP9A1 K HK VP40
    $24.99
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  • New - H&K VP9SK Right Side Grip Panel - Medium - OD Green - HKP-18967 HK VP9SK Right Side Grip Panel - Medium - OD Green
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    HK VP9SK Right Side Grip Panel - Medium - OD Green

    H&K Heckler & Koch

    $19.95
    H&K VP9SK Right Side Grip Panel - Medium - OD Green New HK German manufactured. Right side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SK
    $19.95
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  • New - H&K VP9, VP40 Grip Panel Left Side - Small - OD Green - HKP-18835 HK VP9, VP40 Grip Panel Left Side - Small - OD Green
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    HK VP9, VP40 Grip Panel Left Side - Small - OD Green

    H&K Heckler & Koch

    $24.95
    H&K VP9, VP40 Grip Panel Left Side - Small - OD Green New HK German manufactured. Left side size small. Perfect for spare or for custom stippling projects. Drop-in part for your HK VP pistol. Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 K
    $24.95
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