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 45/45C V4 LH Decock Only Lever - HKP-02707
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    HK45, HK45 Compact V4 LH Decock Only Lever

    H&K Heckler & Koch

    $29.95
    HK 45 & 45C V4 LH Decock Only Lever The V4 lever is for the right side of the frame for a left-handed shooter.  This lever is to be used in conjunction with the V3/4 detent plate found below. Detent...
    HKP-02707
    $29.95
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  • HK USP Firing Pin - New Style - Titanium HK USP Firing Pin - New Style - Titanium
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    HK USP Firing Pin - New Style - Titanium

    HKP HK Parts

    $49.95
    HKP HK USP New Style Titanium Firing Pin A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium pins also carry...
    HKP-17826
    $49.95
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  • New - H&K G36 (5.56/.223) Cocking Handle Bushing - HKP-01869
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    HK G36 Cocking Handle Bushing

    H&K Heckler & Koch

    $9.95
    HK German G36 Cocking Handle Bushing
    HKP-01869
    $9.95
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  • New - H&K USC (.45 ACP) Carbine Mag Release Axle - HKP-02584
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    HK USC Magazine Release Axle

    H&K Heckler & Koch

    $18.95
    Heckler and Koch .45 ACP Magazine Release Axle for HK USC Replacement magazine release axle for HK USC .45 ACP platforms. This component is commonly replaced due to wear or breakage and may also be required when configuring compliant magazine release...
    HKP-02584
    $18.95
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    New - HK33, HK53, HK93 (5.56/.223) Magazine Catch - Latest Design - HKP-01059

    HK33, HK53, HK93 Magazine Catch - Latest Design

    H&K Heckler & Koch

    $49.95
    Heckler and Koch German Factory Magazine Catch for HK33, HK53, HK93 New HK German HK33, HK53, and HK93 mag catch for magazine release.  Compatible With: HK33, HK53, HK93 HK33K Clone or other custom builds
    HKP-01059
    $49.95
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  • HK MP5, AP5 Full Auto Sear Spring Spacer HK MP5, AP5 Full Auto Sear Spring Spacer
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    HK MP5, AP5 Full Auto Sear Spring Spacer

    MKE

    $1.95
    MKE Distance Sleeve for HK MP5 and AP5 Features: Precision-machined roller used in traditional roller-delayed trigger packs. Ensures perfect trigger geometry, smooth operation, and long-lasting reliability. Compatible With: HK MP5  Century...
    HKP-22477
    $1.95
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    RCM HK MP5K Recoil Rod HK MP5K Recoil Rod Assembly - 9mm

    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 Firing Pin Spring - HKP-22138
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    HK CC9 Firing Pin Spring

    H&K Heckler & Koch

    $5.95
    H&K CC9 Firing Pin Spring Manufactured by H&K, this firing pin spring for the H&K CC9 pistol applies consistent tension to the firing pin, ensuring reliable ignition. Compatible With: HK CC9  
    HKP-22138
    $5.95
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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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    New - HK CC9 Magazine Catch Spring - HKP-22107

    HK CC9 Magazine Catch Spring

    H&K Heckler & Koch

    $5.95
    Heckler and Koch Magazine Catch Spring for HK CC9   This authentic CC9 magazine catch spring applies tension to the magazine catch for secure magazine retention and release. Compatible With: HK CC9  
    HKP-22107
    $5.95
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    New - H&K CC9 Magazine Catch - HKP-22106

    HK CC9 Magazine Catch

    H&K Heckler & Koch

    $16.95
    Heckler and Koch Magazine Catch HK CC9   Genuine HK magazine catch for the CC9 pistol engages and locks the magazine in place while allowing for the quick release during reloads. Compatible With: CC9  
    HKP-22106
    $16.95
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  • New - HK G36C Incomplete Gas Piston Rod - Black - HKP-17009
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    HK G36C Piston Rod - Incomplete

    H&K Heckler & Koch

    $49.95
    Heckler and Koch Incomplete Black Gas Piston Rod for HK G36C A must have item for HK G36C conversions from SL8's or for spares for your G36C. New HK German factory part. Compatible with: G36C
    HKP-17009
    $49.95
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