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 - Detent Plate For HK45, HK45C Variant 1, 2 - HKP-01807 HK45, HK45C Detent Plate for Variant 1, 2
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    HK45, HK45C Detent Plate for Variant 1, 2

    H&K Heckler & Koch

    $14.50
    Detent Plate For HK45, HK45C Variant 1, 2 Compatible With: HK45 HK45 Compact
    HKP-01807
    $14.50
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  • New - H&K HK Mark 23 Recoil Assembly Compression Spring - HKP-16644
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    HK Mark 23 Recoil Assembly Compression Spring

    H&K Heckler & Koch

    $19.95
    Mark 23 Recoil Assembly Compression Spring Brand new HK German recoil spring for the HK Mark 23 or SOCOM .45 Pistol. A high wear item that needs to be changed & replaced often as this is a consumable part.
    HKP-16644
    $19.95
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  • New - H&K HK P30 Recoil Rod Compression Spring - HKP-16653
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    HK P30 Recoil Rod Compression Spring

    H&K Heckler & Koch

    $7.95
    H&K HK P30 Recoil Rod Compression Spring
    HKP-16653
    $7.95
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  • New - H&K HK USP/Tactical .45 ACP Lanyard Loop Insert - HKP-02385 HK USP, USP Tactical Lanyard Loop Insert - .45 ACP
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    HK USP, USP Tactical Lanyard Loop Insert - .45 ACP

    H&K Heckler & Koch

    $18.95
    HK USP/Tactical .45 ACP Lanyard Loop Insert This item does not have the lockout device installed for those who prefer not to have this device on their firearm.
    HKP-02385
    $18.95
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  • Out Of Stock
    New - H&K HK USP Hammer Rebound Spring - HKP-16678

    HK USP Hammer Spring

    H&K Heckler & Koch

    $7.95
    H&K HK USP Hammer Rebound Spring For use on DAO only NOT LEM hammers for the following pistols. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45...
    HKP-16678
    $7.95
    Out Of Stock
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Spring - HKP-01862
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    HK G36, SL8 Cocking Handle Spring

    H&K Heckler & Koch

    $10.95
    HK German G36 Cocking Handle Spring - All Variants Compatible With: G36 - all variants SL8 - all variants
    HKP-01862
    $10.95
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  • New - HK G36 (5.56/.223) Cocking Handle Bushing - HKP-18368 HK G36 Cocking Handle Bushing - USA
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    HK G36 Cocking Handle Bushing - USA

    $5.95
    G36 Cocking Handle Bushing - US Made
    HKP-18368
    $5.95
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  • On Sale
    New - MKE HK 93/53/33 Push Pin Spring - HKP-22228 MKE Push Pin Spring MKE HKP-22228
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    HK33, HK53, HK93 Push Pin Spring

    MKE

    Now: $2.19
    Was: $3.95
    MKE HK33, HK53, HK33 Push Pin Spring A must have replacement spring to have on hand. A quick and easy install spring to get your push pins back to working condition. A great replacement for those worn out springs that come loose while in action...
    HKP-22228
    Now: $2.19
    Was: $3.95
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    Now: $2.19
    Was: $3.95
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  • New - H&K 416 Front Takedown Pin - HKP-21862 HK416, MR556 Takedown Pin - Front - A4 Style
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    HK416, MR556 Takedown Pin - Front - A4 Style

    H&K Heckler & Koch

    $26.95
    H&K HK416, MR556 A4 Front Takedown Pin  The HK416 front takedown pin is a German-made component designed to securely fasten the upper and lower receivers. Precision-machined for a proper fit, it ensures reliable function and serves as an ideal...
    HKP-21862
    $26.95
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  • New - HK 416, MR556 Roll Pin for Charging Handle - HKP - HKP-16536
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    HK416, MR556 Charging Handle Roll Pin

    $7.95
    HK 416, MR556 Roll Pin for Charging Handle - HKP This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.
    HKP-16536
    $7.95
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  • New - H&K HK MP5, HK SP5 10 Round Magazine Spring - HKP-19454
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    HK MP5, HK94, SP5 Magazine Spring - 10 Round

    H&K Heckler & Koch

    $6.95
    10 Round Magazine Spring - HK MP5, 94, SP5 A must-have repair and replacement part great for spares. Compatible With: All factory spec steel 10 round MP5, 94 style curved magazines
    HKP-19454
    $6.95
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  • New - H&K HK USP Hammer, Hammer Strut Roll Pin - HKP-02268
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    HK USP Hammer, Hammer Strut Roll Pin

    H&K Heckler & Koch

    $5.95
    HK USP Hammer, Hammer Strut Roll Pin This pin installs in the hammer and makes contact with the hammer strut.
    HKP-02268
    $5.95
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