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 MR556/416 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.
    HKP-17063
    $7.95
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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...
    HKP-01037
    $199.95
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  • New - H&K MP5 40/10 Extractor - HKP-00410 HK MP5 40/10 Extractor
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    HK MP5 40/10 Extractor

    H&K Heckler & Koch

    $69.95
    New HK MP5 40/10/.357 Latest Production 1.4mm Extractor This is the latest and greatest upgraded extractor made by HK. This is also a great upgrade for the many out-of-spec clones out there. Compatible With: MP5 40 MP5 10 MP5 .357
    HKP-00410
    $69.95
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  • New - HKP MP5 40/10 Magazine Release Paddle Lever - HKP-01274 HK MP5 Magazine Release Paddle Lever - 10mm / .40 S&W
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    HK MP5 Magazine Release Paddle Lever - 10mm / .40 S&W

    HKP HK Parts

    $59.95
    HK MP5 40 & MP5 10mm - Magazine Release Lever   
    HKP-01274
    $59.95
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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...
    HKP-00426
    $9.95
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  • New - HKP HK93, HK33 Spare Parts Kit - HKP-20674 HK93, HK33 Spare Parts Kit
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    HK93, HK33 Spare Parts Kit

    H&K Heckler & Koch

    $209.95
    HKP HK93, HK33 Spare Parts Kit Spare parts kits for the most commonly worn parts needed to keep your HK93, HK33 going. This offering also includes a pouch to safely store all your replacement parts and needed tools to have on hand when required. This...
    HKP-20674
    $209.95
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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
    HKP-16812
    $19.95
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  • New - HKP HK MP5 40 Locking Roller +4 - HKP-17562
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    HKP HK MP5 40 Locking Roller +4

    HKP HK Parts

    $11.95
    HK US MP540 Undersized Locking Roller, +4 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...
    HKP-17562
    $11.95
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  • On Sale
    New - HK G36/SL8 Extractor - HKP-18882 HK G36, SL8 Extractor
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    HK G36, SL8 Extractor

    USA

    Now: $39.95
    Was: $67.95
    G36 & HK SL8 Extractor For Bolt Head Compatible With: All G36 variants SL8-1, SL8-6
    HKP-18882
    Now: $39.95
    Was: $67.95
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    Now: $39.95
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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 MP7, G36 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  
    HKP-01858
    $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,...
    HKP-02623
    $39.95
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    $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
    HKP-17798
    $24.95
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    $24.95
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