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 - GSG9 HK G36/SL8 (5.56/.223) Barrel Retaining Nut - HKP-18252 HK G36, SL8  Barrel Retaining Nut
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    HK G36, SL8 Barrel Retaining Nut

    GSG9

    $53.00
    HK G36 & SL8 Barrel Retaining Nut - USA Made in the USA. Compatible With: SL8 (all models & variants) G36E G36K G36C All other G36 Variants
    HKP-18252
    $53.00
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    New - H&K MP5 & MP5K Stop Pin For Recoil Rod - HKP-17421

    HK MP5, MP5K Recoil Rod Stop Pin

    H&K Heckler & Koch

    $14.99
    HK German MP5 & MP5K Recoil Rod Stop Pin New HK German manufacture a great spare or replacement item to have on hand. Compatible With: MP5, 94, SP5 MP5K, SP89, SP5KClones or other custom builds
    HKP-17421
    $14.99
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  • HK MP5, AP5 Magazine Catch Push Button
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    HK MP5, AP5 Magazine Catch Push Button

    MKE

    $6.95
    HK MP5, AP5 Magazine Catch Button Push button for magazine catchCompatible with: HK MP5, SP5 HK MP5K, SP5K HK SP89 HK94 HK33, HK53, HK93 HK91, G3 In-spec. clones and custom builds
    HKP-22548
    $6.95
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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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  • New - H&K CC9 Extractor Buffer - HKP-22131
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    HK CC9 Extractor Buffer

    H&K Heckler & Koch

    $5.95
    H&K CC9 Extractor Buffer Made in Germany by H&K, the extractor buffer for the CC9 cushions extractor movement and reduces wear during cycling. Compatible With: HK CC9  
    HKP-22131
    $5.95
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  • New - H&K P30S/P30SK Detent Pin Compression Spring - HKP-22030 HK P30S, P30SK Detent Pin Compression Spring
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    HK P30S, P30SK Detent Pin Compression Spring

    H&K Heckler & Koch

    $4.95
    H&K P30S/P30SK Detent Pin Compression Spring Compression spring for the detent pin on H&K P30 series pistols equipped with a manual safety. Designed to provide proper tension and reliable function of the safety selector mechanism. Compatible...
    HKP-22030
    $4.95
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  • New - H&K P30/L Loaded Chamber Indicator Compression Spring - HKP-02220
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    HK P30, P30L Loaded Chamber Indicator Compression Spring

    H&K Heckler & Koch

    $5.95
    H&K P30/L Loaded Chamber Indicator Compression Spring  
    HKP-02220
    $5.95
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  • New - H&K HK G36 Guide Rod Set Screw - HKP-01873
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    HK G36 Guide Rod Set Screw

    H&K Heckler & Koch

    $9.95
    HK G36 Guide Rod Set Screw Replacement guide rod set screw for HK G36 platforms. Designed to secure the guide rod assembly within the bolt carrier group during proper installation and maintenance. Compatible With: G36  
    HKP-01873
    $9.95
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  • New - HKP HK VP9/VP9SK, HK VP40 Trigger Safety Latch - Black - HKP-16773 HK VP9, VP9SK, VP40 Safety Latch - Trigger
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    HK VP9, VP9SK, VP40 Safety Latch - Trigger

    HKP HK Parts

    $4.95
    HKP HK VP9/VP9SK, HK VP40 Trigger Safety Latch
    HKP-16773
    $4.95
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  • New - H&K HK VP9/VP9SK, HK VP40 Drop Safety - HKP-16836 HK VP9, VP9SK, HK VP40 Drop Safety
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    HK VP9, VP9SK, HK VP40 Drop Safety

    H&K Heckler & Koch

    $46.95
    H&K HK VP9/VP9SK, HK VP40 Drop Safety   Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40
    HKP-16836
    $46.95
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  • New - H&K VP9/VP9SK, HK VP40 Axle For Drop Safety - HKP-16837 HK VP9, VP9SK, VP40 Drop Safety Axle
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    HK VP9, VP9SK, VP40 Drop Safety Axle

    H&K Heckler & Koch

    $31.95
    H&K VP9/VP9SK, HK VP40 Axle For Drop Safety
    HKP-16837
    $31.95
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  • New - H&K HK MR762/417 Threaded Pin For Buttstock Insert - HKP-16609 HK417, HK MR762 Threaded Pin for Buttstock Insert
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    HK417, HK MR762 Threaded Pin for Buttstock Insert

    H&K Heckler & Koch

    $4.95
    H&K HK MR762/417 Threaded Pin For Buttstock Insert HK MR762, HK 417 threaded pin for the buttstock release lever insert. Compatible With: HK MR762 HK 417
    HKP-16609
    $4.95
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