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 MR556/MR762/416/417 Disconnector - HKP-02674
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    HK416, HK417, MR556, MR762 Disconnector

    H&K Heckler & Koch

    $18.95
    H&K HK MR556/MR762/416/417 Disconnector For Lower New HK German manufactured part. This is the latest generation of HK disconnector for the HK MR and HK 416/417 family of firearms. Compatible With: HK MR556 HK 416 HK MR762 HK 417 Please Note: HK...
    $18.95
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  • New - H&K HK VP9, HK VP40 Catch Spring for Disassembly Lever - HKP-16786
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    HK VP9, VP40 Disassembly Lever Spring

    H&K Heckler & Koch

    $5.95
    Catch Spring For Disassembly Lever HK VP9, HK VP40 Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40
    $5.95
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  • New - H&K USP/45/45C New Style Bobbed Hammer - HKP-01589
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    HK USP/45/45C New Style Bobbed Hammer

    H&K Heckler & Koch

    $59.95
    HK USP, USPC & HK45 & HK45C Bobbed Hammer - New Style This has the shorter, lower-profile "bobbed" hammer. The new style hammer has a cutout for 2005 and later production. Compatible With: USP 9mm & USP Compact 9mm USP 40 & USP Compact...
    $59.95
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  • Out Of Stock
    New - H&K HK MR556/MR762/416/417 Disconnector Spring - Short - HKP-02675

    HK416, HK417, MR556, MR762 Disconnector Spring - Short

    H&K Heckler & Koch

    $4.95
    H&K HK MR556/MR762/416/417 Disconnector Spring - Short This is the shorter spring of the 2 found in the trigger assembly. Compatible With: HK MR556 HK 416 HK MR762 HK 417
    $4.95
    Out Of Stock
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    $4.95
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  • New - HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) QD Sling Pin for Stock Block B - HKP-18776 HK UMP, USC 9mm / .40 S&W / .45 ACP QD Sling Pin for Stock Block B
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    HK UMP, USC 9mm / .40 S&W / .45 ACP QD Sling Pin for Stock Block B

    HKP HK Parts

    $74.95
    Quick Detach Sling Pin for Stock Block B - USC, UMP This Ambidextrous QD Sling Pin allows you to replace your Push Pin Style or Eyelet Sling Loop -  Style Pin in your Stock Block B for use of a QD Sling.
    $74.95
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  • Out Of Stock
    New - H&K -2 Roller For Bolt Head 7.98mm - Under-sized - HKP-00505 HK -2 Roller For Bolt Head 7.98mm - Under-sized

    HK -2 Roller For Bolt Head 7.98mm - Under-sized

    H&K Heckler & Koch

    $19.95
    H&K -2 Roller For Bolt Head 7.98mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -2 roller. Please Note: The price listed is per roller. Order 2 (pair) for...
    $19.95
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  • New - H&K Cocking Tube End Cap Detent - HKP-18050
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    HK End Cap - Detent - Cocking Tube

    H&K Heckler & Koch

    $4.95
    HK German Cocking Tube End Cap/Dust Cap Detent HK German cocking tube detent for all steel and aluminum cocking tube end caps. Made of steel and finished in black.
    $4.95
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  • New - H&K HK 45 Recoil Complete Rod w/ Spring - HKP-01667
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    HK45 Recoil Complete Rod w/ Spring

    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 Mark 23 Rear Sight Retaining Screw - HKP-01628
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    HK Mark 23 Rear Sight Retaining Screw

    H&K Heckler & Koch

    $19.95
    HK Mark 23 Rear Sight Retaining Screw
    $19.95
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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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    Now: $7.75
    Was: $14.96
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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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  • 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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