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 HK 45 Recoil Complete Rod w/ Spring - HKP-01667
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    HK45 Recoil Rod and Spring - Complete

    H&K Heckler & Koch

    $104.95
    HK 45 Recoil Complete Rod w/ Spring This is the complete recoil guide assembly for the HK45 pistol. Great item to have on hand for repair or replacement. Compatible With: HK45 HK45 Tactical Please Note: This does not fit the USP .45...
    $104.95
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  • New - H&K HK MR556/416 Forward Assist Plunger Pin - HKP-17542
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    HK416, MR556 Forward Assist Plunger Pin

    H&K Heckler & Koch

    $9.95
    H&K HK MR556/416 Forward Assist Plunger Pin  
    $9.95
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  • New - H&K HK MR556/416 Roll Pin for Charging Handle - HKP-17063
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    HK 416, MR556 Charging Handle Roll Pin

    H&K Heckler & Koch

    $7.95
    HK Clamping Sleeve or Roll Pin for Pawl On Charging Handle This is the longer one that is used on the outside of the charging handle. There are one of these pins used per charging handle.
    $7.95
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  • New - GSG9 HK G36/SL8 (5.56/.223) Firing Pin - HKP-18256 HK G36, SL8  Firing Pin
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    HK G36, SL8 Firing Pin

    GSG9

    $28.95
    HK G36, G36K, G36C & SL8 Firing Pin - USA A must have spare part for all G36 models. Made in the USA. Fully machined and nitrided for superior strength. Compatible With: G36 G36K G36C SL8
    $28.95
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  • On Sale
    New - HKP HK VP9/VP9SK, VP40 Enhanced Support Sleeve - Green - HKP-19631 HK VP9, VP9SK, VP40 Enhanced Support Sleeve - Green
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    HK VP9, VP9SK, VP40 Enhanced Support Sleeve - Green

    HKP HK Parts

    Now: $7.75
    Was: $14.96
    Enhanced Support Sleeve VP9, VP9SK & VP40 - Aluminum Alloy - Green A must-have upgrade part for the VP series of pistols! The support sleeve is found in the VP slide and is the part that depresses to allow you to remove the slide plate, firing pin...
    Now: $7.75
    Was: $14.96
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  • New - H&K MP5F & MP5 40,10 Cocking Support Handle Spring - HKP-00426
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    HK MP5F, MP5 Compression Spring - Cocking Lever Support - 10mm / .40 S&W

    H&K Heckler & Koch

    $9.95
    H&K MP5F & MP5 40,10 Cocking Support Handle Spring One of these springs is required for use with the cocking handle/support assembly. You need the following - MP5 40 cocking tube support, MP5 40 cocking handle, and the cocking handle spring to...
    $9.95
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  • New - H&K VP9, VP40 Grip Panel Right Side - Large - Black - HKP-16812 HK VP9, VP40 Grip Panel Right Side - Large - Black
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    HK VP9, VP40 Grip Panel Right Side - Large - Black

    H&K Heckler & Koch

    $19.95
    H&K VP9, VP40 Grip Panel Right Side - Large - Black New HK German manufactured. Left side, medium size 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
    $19.95
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  • New - H&K HK 45C LEM Complete Conversion Kit - HKP-01037
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    HK45C LEM Conversion Kit - Complete

    H&K Heckler & Koch

    $199.95
    New HK German HK 45 Compact LEM Conversion Kit Complete For All HK 45 Compact Pistols Use factory installed trigger return spring for the light LEM (4.5-5.5lb) and the supplied heavy trigger return spring for the heavy LEM conversion. This LEM conversion...
    $199.95
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  • New - H&K G36/MP7 (4.6x30/5.56/.223) Firing Pin Bolt O-Ring - HKP-01858
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    HK G36, MP7 Bolt O-Ring - Firing Pin

    H&K Heckler & Koch

    $9.95
    HK G36 & MP7 Firing Pin - Bolt O-Ring   Compatible With: HK G36 HK MP7  
    $9.95
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  • Out Of Stock
    New - HK UMP/USC (.45 ACP) Extractor - HKP-02623 HK UMP/USC (.45 ACP) Extractor

    HK UMP/USC (.45 ACP) Extractor

    $39.95
    HK UMP & USC .45 Extractor Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once removed from the carrier, the spring tension is compromised,...
    $39.95
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  • Out Of Stock
    New - HKP HK 93/53/33 (5.56/.223) Firing Pin - Stainless Steel - HKP-17798

    HK33, HK53, HK93 Firing Pin - Stainless Steel

    HKP HK Parts

    $24.95
    HKP HK 93/53/33 (5.56/.223) Firing Pin - Stainless Steel Specifications: Made in the USA Made from stainless steel Compatible With: HK 93/53/33
    $24.95
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  • Used - H&K A3 Retractable Stock Clamping Lever Spring - HKP-01089
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    HK A3 Buttstock Clamping Lever Spring - Retractable

    H&K Heckler & Koch

    $19.95
    HK German Retractable Stock Clamping Lever Spring For A3 Retractable Stocks This spring is the most common breakage/wear item in the internal workings of the A3 retractable stock.
    $19.95
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