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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  • Out Of Stock
    Used - KDG HK MR762, HK417, HK G28 Ambidextrous Magazine Release - Black - HKP-19204 Angled view of HK enhanced mag release with extended shaft and textured paddle for improved grip and control

    HK417, MR762, G28 Magazine Release - Ambidextrous

    KDG Kinetic Development Group

    $169.95
    KDG Kinetic Development Group Ambi Magazine Release for HK417, HK MR762, and HK G28 The HK 7.62 Ambi (Ambidextrous) Magazine Release. This is the first ambidextrous magazine release for the HK417 variant rifles.  The mag release is a lever instead...
    HKP-19204
    $169.95
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    $169.95
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  • New - H&K HK G36, HK SL8 Magazine Paddle Release - HKP-02152 HK G36, SL8 Paddle Magazine Release
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    HK G36, SL8 Paddle Magazine Release

    H&K Heckler & Koch

    $19.95
    Heckler and Koch Paddle Magazine Release for HK G36 and HK SL8 Compatible With: SL8 G36 G36K G36C
    HKP-02152
    $19.95
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  • New - H&K HK MR556/MR762/416 Dowel Pin - HKP-19528
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    HK416, MR556, MR762 Dowel Pin

    $9.95
    H&K HK MR556/MR762/416 Dowel Pin Compatible With: HK MR556 HK 416 HK MR762
    HKP-19528
    $9.95
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    $9.95
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  • New - HKP HK VP9, VP9SK, VP40 Elbow Spring Stop Pin - HKP-16779
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    HK VP9, VP9SK, VP40 Trigger Bar Pin

    HKP HK Parts

    $9.95
    HKP HK Parts Elbow Spring Stop Pin for HK VP9, HK VP9SK, and HK VP40 
    HKP-16779
    $9.95
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  • Used - H&K HK P9S 9mm Extractor - HKP-01997
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    HK P9S 9mm Extractor

    H&K Heckler & Koch

    $79.95
    HK P9S 9mm Extractor This extractor is no longer manufactured and is hard to find. This is the last remaining stock that HK had in inventory. Last call for this part. 
    HKP-01997
    $79.95
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  • New - H&K HK USP .45 ACP Buffer Spring Retainer Roll Pin - HKP-02267
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    HK USP Retainer Roll Pin, Buffer Spring - .45 ACP

    H&K Heckler & Koch

    $7.95
    HK USP .45 ACP Buffer Spring Retainer Roll Pin  
    HKP-02267
    $7.95
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  • Out Of Stock
    New - H&K HK USPC LEM Firing Pin Block Spring - HKP-16421

    HK USP Compact LEM Block Spring - Firing Pin

    H&K Heckler & Koch

    $8.95
    H&K HK USPC LEM Firing Pin Block Spring   Compatible With: HK USP Compact 9mm - LEM HK USP Compact 40 - LEM HK USP Compact 45 ACP - LEM
    HKP-16421
    $8.95
    Out Of Stock
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    $8.95
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  • New - H&K HK G36 Left Side Lower Hammer Spring - HKP-01856
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    HK G36 Hammer Spring - Left Side

    H&K Heckler & Koch

    $8.95
    HK G36 Left Side Lower Hammer Spring
    HKP-01856
    $8.95
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  • New - H&K G36/SL8 (5.56/.223) Extractor Axle - HKP-01895
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    HK G36, SL8 Extractor Axle

    H&K Heckler & Koch

    $9.95
    HK G36 & SL8 Extractor Axle This part can become heavily worn and is prone to breakage. Compatible With: HK G36 models HK SL8 models
    HKP-01895
    $9.95
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Spring - HKP-01862
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    HK G36, SL8 Cocking Handle Spring

    H&K Heckler & Koch

    $10.95
    HK German G36 Cocking Handle Spring - All Variants Compatible With: G36 - all variants SL8 - all variants
    HKP-01862
    $10.95
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  • New - H&K G36/SL8 (5.56/.223) Barrel Retaining Nut - HKP-16341 HK G36, SL8 Barrel Retaining Nut
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    HK G36, SL8 Barrel Retaining Nut

    H&K Heckler & Koch

    $29.95
    HK G36 & SL8 Barrel Retaining Nut - German HK Compatible With: SL8 (all models and variants) G36E G36K G36C All other G36 Variants
    HKP-16341
    $29.95
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  • Used - H&K USC/SL8 (.45 ACP/5.56/.223) Buttstock Screw - HKP-01649 HK USC, SL8 Buttstock Allen Screw
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    HK USC, SL8 Buttstock Allen Screw

    H&K Heckler & Koch

    $17.95
    Buttstock Allen Screw For HK USC Or HK SL8 rifles. This is the screw that holds the stock assembly onto the upper receiver of the HK USC & SL8.Great for replacements or to have as spares. This item is factory HK and a common spare.
    HKP-01649
    $17.95
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