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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  • HK UMP Paddle Magazine Release - Extended HK UMP Paddle Magazine Release - Extended
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    HK UMP Paddle Magazine Release - Extended

    HKP HK Parts

    $34.95
    UMP Paddle Magazine Release - Extended Billeted alloy UMP magazine release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. With this new metal mag release you get more surface area as well as a much...
    HKP-17919
    $34.95
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  • New - H&K 91/93/33/53/G3 (5.56/.223) & (7.62x51/.308) Anti-Rattle Mag Release - HKP-01126 HK33, HK53, HK93, HK91, G3 Anti-Rattle Mag Release
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    HK33, HK53, HK93, HK91, G3 Anti-Rattle Mag Release

    H&K Heckler & Koch

    $64.95
    HK German Anti Rattle Paddle Magazine Release This item is a new H&K genuine part not used or surplus for installation on all HK .223 & .308 HK Rrifles. This is the highly desired anti-rattle-style paddle mag release. Compatible With: HK 91 HK...
    HKP-01126
    $64.95
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  • New - H&K MP5 40/10 Standard 8mm Roller - HKP-00338 HK MP5 40/10 Standard 8mm Roller
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    HK MP5 40/10 Standard 8mm Roller

    H&K Heckler & Koch

    $20.95
    HK German MP5 40/10 8mm Roller - Factory New 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...
    HKP-00338
    $20.95
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  • On Sale
    HK AP5P/MP5K Recoil Rod Assembly MKE HKP-22389 HK AP5P/MP5K Recoil Rod Assembly MKE HKP-22389
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    HK MP5K, AP5-P Recoil Rod Assembly

    MKE

    Now: $54.95
    Was: $64.95
    MKE HK AP5P/MP5K Recoil Rod Assembly The recoil spring assembly is a great item to have on hand for replacement and spares as this is a consumable wearable part.  Compatible With: HK SP5K/MP5K/SP89 Century Arms AP5-P/AP5-M Clones and other HK...
    HKP-22389
    Now: $54.95
    Was: $64.95
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    Now: $54.95
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  • RCM HK MP5K Recoil Rod HK MP5K Recoil Rod Assembly - 9mm
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    HK MP5K Recoil Rod Assembly - 9mm

    RCM

    $54.95
    RCM HK MP5K Recoil Rod Assembly The recoil rod and spring assembly is a great item to have on hand for replacement and spares as this is a consumable part. Compatible With: HK MP5K NOT compatible with SP5K with the F-style recoil rod MP5K clones and...
    HKP-22203
    $54.95
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  • New - H&K CC9 Extractor Roll Pin - HKP-22132
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    HK CC9 Extractor Roll Pin

    H&K Heckler & Koch

    $5.95
    H&K CC9 Extractor Roll Pin Made in Germany, the extractor roll pin for the CC9 secures the extractor to the slide. Compatible With: HK CC9  
    HKP-22132
    $5.95
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  • Out Of Stock
    New - H&K HK G36, HK SL8 Roll Pin for Gas Piston - Black - HKP-16386

    HK G36, SL8 Roll Pin - Gas Piston

    H&K Heckler & Koch

    $9.95
    H&K HK G36, HK SL8 Roll Pin for Gas Piston
    HKP-16386
    $9.95
    Out Of Stock
    Qty in Cart: 0
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    $9.95
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  • New - H&K HK MR762/417 Charging Handle Pin - HKP-16754
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    HK417, MR762 Charging Handle Pin

    H&K Heckler & Koch

    $6.95
    H&K HK MR762/417 Charging Handle Pin HK MR762 & HK 417 Clamping Sleeve for plate on charging handle. There are two of these pins used on the charging handle. Compatible With: HK MR762 HK 417
    HKP-16754
    $6.95
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  • New - H&K HK Mark 23 Roll Pin Right Safety Lever - HKP-01813
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    HK Mark 23 Roll Pin Right Safety Lever

    H&K Heckler & Koch

    $7.95
    HK Mark 23 Roll Pin Right Safety Lever New HK German nickel plated 1.5 X 9mm roll pin to hold the right side of the selector lever to the axle of the left side control lever. Compatible With: HK Mark 23 HK SOCOM .45
    HKP-01813
    $7.95
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    $7.95
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  • New - HK P Series Hammer Axle - HKP-01797 HK P Series Hammer Axle
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    HK P Series Hammer Axle

    H&K Heckler & Koch

    $51.95
    HK P Series Hammer Axle Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P2000 HK P2000SK HK P30 HK P30L HK P30SK
    HKP-01797
    $51.95
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  • New - HKP HK G36/SL8 (5.56/.223) Cocking Handle - HKP-18251 HK G36, SL8  Cocking Handle
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    HK G36, SL8 Cocking Handle

    HKP HK Parts

    $49.95
    Cocking Handle For G36 & SL8 Bolt Carriers - USA New USA made charging handle ideal for a 922 replacement part. Made in the USA.
    HKP-18251
    $49.95
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  • New - H&K 23E/13E/G43 (7.62x51/.308) & (5.56/.223) Extractor - HKP-00818 HK23E, HK13E, G43 Extractor - 7.62x51 / .308, 5.56 / .223
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    HK23E, HK13E, G43 Extractor - 7.62x51 / .308, 5.56 / .223

    H&K Heckler & Koch

    $119.95
    HK23E & HK13E Extractor New HK German and no longer in production. Compatible With: MM 23E HK 13E
    HKP-00818
    $119.95
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    $119.95
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