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 VP9SK, VP40SK Backstrap - Small - Gray - HKP-18969 HK VP9SK, VP40SK Backstrap - Small - Gray
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    HK VP9SK, VP40SK Backstrap - Small - Gray

    H&K Heckler & Koch

    $29.95
    H&K VP9SK, VP40SK Backstrap - Small - Gray New HK German manufacture. Compatible With: HK VP9SK HK VP40SK
    HKP-18969
    $29.95
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    $29.95
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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 - 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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    $14.50
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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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    $7.95
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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
    Qty in Cart: 0
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    $7.95
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  • New - H&K HK 417/MR556/416/MR776 Pin Look Index - HKP-02639
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    HK416, HK417, MR556, MR762 Pin Look Index

    H&K Heckler & Koch

    $6.95
    H&K HK 417/MR556/416/MR776 Pin Look Index   Compatible With: HK MR556 HK 417 HK MR556  
    HKP-02639
    $6.95
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    $6.95
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  • On Sale
    HK AP5P/MP5K Recoil Rod Assembly MKE HKP-22389 HK AP5P/MP5K Recoil Rod Assembly MKE HKP-22389
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    HK MP5K, AP5-P Recoil Rod Assembly

    MKE

    Now: $54.95
    Was: $64.95
    MKE HK AP5P/MP5K Recoil Rod Assembly The recoil spring assembly is a great item to have on hand for replacement and spares as this is a consumable wearable part.  Compatible With: HK SP5K/MP5K/SP89 Century Arms AP5-P/AP5-M Clones and other HK...
    HKP-22389
    Now: $54.95
    Was: $64.95
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    Now: $54.95
    Was: $64.95
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  • Out Of Stock
    HK VP9 Match Firing Pin Complete H&K Heckler & Koch HKP-22320 HK VP9 Match Firing Pin Complete H&K Heckler & Koch HKP-22320

    HK VP9 Match Firing Pin - Complete

    H&K Heckler & Koch

    $69.95
    Heckler and Koch Complete Firing Pin for your VP9 Match Complete firing pin assembly including firing pin, sleeve, spring, and shell spring washers. Compatible With: HK VP9 Match HK VP9 HK HK VP9L HK VP9SK
    HKP-22320
    $69.95
    Out Of Stock
    Qty in Cart: 0
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    $69.95
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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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    $5.95
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  • New - H&K HK USP/45/P2000 Sear Axle - HKP-01251
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    HK45, USP, P2000 Sear Axle

    H&K Heckler & Koch

    $13.95
    Sear Axle 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 ACP HK USP Compact LEM HK45 HK45 Compact HK P2000 9mm HK P2000 .40 S&W HK P2000 .357...
    HKP-01251
    $13.95
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    $13.95
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  • New - H&K HK Mark 23 Hammer Strut Spring - HKP-01581
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    HK Mark 23 Hammer Strut Spring

    H&K Heckler & Koch

    $8.95
    HK Mark 23 Hammer Strut Spring
    HKP-01581
    $8.95
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    $8.95
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  • Out Of Stock
    New - H&K MP5 40/10 +2 Roller - HKP-00334 HK MP5 Locking Roller +2 - .40 S&W, 10mm

    HK MP5 Locking Roller +2 - .40 S&W, 10mm

    H&K Heckler & Koch

    $19.99
    H&K Heckler and Koch +2 Roller for HK MP5 40,10  New HK German MP5 40,10 +2 roller. Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production.  Please Note: The price...
    HKP-00334
    $19.99
    Out Of Stock
    Qty in Cart: 0
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    $19.99
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