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 - B&T APC Takedown Pin - Front - HKP-21737 B&T APC Takedown Pin - Front
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    B&T APC Takedown Pin - Front

    B&T Brugger & Thomet

    $11.95
    B&T APC Takedown Pin - Front Factory B&T front take down pin for the APC receiver. Compatible With: APC Series Standard receiver Glock receiver Sig receiver
    HKP-21737
    $11.95
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  • New - H&K VP9, VP40 Backstrap - Small - OD Green - HKP-18839 HK VP9, VP40 Backstrap - Small - OD Green
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    HK VP9, VP40 Backstrap - Small - OD Green

    H&K Heckler & Koch

    $24.95
    H&K VP9, VP40 Backstrap - Small - OD Green New HK German Manufactured Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 K
    HKP-18839
    $24.95
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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 MR762 Firing Pin Retaining Pin - HKP-16612
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    HK417, MR762 Firing Pin Retaining Pin

    H&K Heckler & Koch

    $19.95
    Heckler and Koch MR762 Firing Pin Retaining Pin This firing pin retaining pin is made from a durable, black finished, steel and is a factory original Heckler and Koch component. This retaining pin is made for the HK417 and HK MR762 model of rifles. This...
    HKP-16612
    $19.95
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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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  • New - H&K HK Mark 23 Decocking Spring - HKP-02322
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    HK Mark 23 Decocking Spring

    H&K Heckler & Koch

    $6.95
    HK Mark 23 Decocking Spring  
    HKP-02322
    $6.95
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  • New - H&K HK P30/P2000 Trigger Bar Detent - HKP-01798
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    HK P30, P2000 Trigger Bar Detent

    H&K Heckler & Koch

    $16.95
    HK P30 & P2000 Trigger Bar Detent Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P2000 HK P2000SK HK P30 HK P30L HK P30SK
    HKP-01798
    $16.95
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  • New - HKP HK MR556/416 SS Firing Pin - HKP-01756
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    HK416, MR556 SS Firing Pin

    HKP HK Parts

    $29.95
    Firing Pin For HK 416 & MR556 Firearm - USA Made from hardened stainless steel and comes new in the white. Compatible With: HK416 HK MR556 HK CR556 HK M27
    HKP-01756
    $29.95
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  • Out Of Stock
    New - HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin - HKP-16339 HK UMP, USC Stock Block B Sling Pin - Push Pin Style

    HK UMP, USC Stock Block B Sling Pin - Push Pin Style

    HDPS

    $39.95
    HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin This sling pin will replace the current production stock Block B hardware and upgrade to the Sling Pin Pull Style version.
    HKP-16339
    $39.95
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  • New - H&K MP5 40/10 Recoil Rod Bushing - Black - HKP-00441 HK MP5 Recoil Rod Bushing - .40 S&W, 10mm, .357 SIG
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    HK MP5 Recoil Rod Bushing - .40 S&W, 10mm, .357 SIG

    H&K Heckler & Koch

    $9.95
    New HK German MP5 40/10/.357 Recoil Rod Guide Ring Bushing For all MP5 40/10 & MP5F Recoil Rods. These will wear and become brittle and torn with age and use. A great item to have on hand for spare parts.
    HKP-00441
    $9.95
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  • New - RCM MP5 40/10 Extractor - HKP-01969 HK MP5 Extractor - .40 S&W, 10mm
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    HK MP5 Extractor - .40 S&W, 10mm

    RCM

    $34.95
    RCM US Made Extractor for HK MP5 .40 S&W and 10mm This part is made to the exact same specs as the HK German extractor final polish included. It is also a great upgrade for the clone CA and Vector builds.
    HKP-01969
    $34.95
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  • On Sale
    HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325 HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325
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    HK MP5, G3, HK93 Magazine Catch Push Button- Used

    H&K Heckler & Koch

    Now: $4.95
    Was: $8.95
    H&K MP5, G3, PTR, HK93 Push Button for Magazine Catch - Used   Factory original HK push button replacement part. Limited quantity available.   This is a used part, sold AS-IS, and is not eligible for return.  Compatible...
    HKP-99316
    Now: $4.95
    Was: $8.95
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    Now: $4.95
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