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 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
    HKP-01897
    $36.95
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  • Out Of Stock
    New - H&K MP5 40/10 Threaded Bolt/Mag Follower Catch Screw - HKP-00454 HK MP5 Catch Screw, Bolt or Mag Follower - 10mm and .40 S&W - Threaded

    HK MP5 Catch Screw, Bolt or Mag Follower - 10mm and .40 S&W - Threaded

    H&K Heckler & Koch

    $34.95
    MP5 40/10 Threaded Bolt Catch For Magazine Follower This is the small threaded screw that fits into the bolt-hold-open axle and makes contact with the magazine follower to activate the bolt-hold-open. A small but critical part is to keep spares on hand,...
    HKP-00454
    $34.95
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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...
    HKP-00337
    $19.95
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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
    HKP-19174
    $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
    HKP-18967
    $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...
    HKP-20261
    $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  
    HKP-02322
    $6.95
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  • New - H&K HK P Series Control Latch - HKP-01957
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    HK P Series Control Latch

    H&K Heckler & Koch

    $19.95
    HK P Series Control Latch Compatible With: HK P30 HK P30L HK P30SK HK P2000 HK P2000SK Please Note: This is the correct part for the CDA V4.1 Trigger found in Europe.
    HKP-01957
    $19.95
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  • Out Of Stock
    New - H&K HK USP/45/P2000 Sear Axle - HKP-01251

    HK45, USP, P2000 Sear Axle

    H&K Heckler & Koch

    $13.95
    Sear Axle Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45 ACP HK USP Compact LEM HK45 HK45 Compact HK P2000 9mm HK P2000 .40 S&W HK P2000 .357...
    HKP-01251
    $13.95
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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  
    HKP-17021
    $7.95
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  • New - H&K HK MR556/MR762/416/417 Sear Release Rocker Latch - HKP-12705
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    HK416, HK417, MR556, MR762 Sear Release Rocker Latch

    H&K Heckler & Koch

    $99.95
    H&K HK MR556/MR762/416/417 Sear Release Rocker Latch Compatible With: HK MR556 HK 416 HK MR762 HK 417
    HKP-12705
    $99.95
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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.
    HKP-16339
    $39.95
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