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 USP/45/45C Old Style Bobbed Hammer - HKP-14552
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    HK45, HK45 Compact, USP Old Style Bobbed Hammer

    H&K Heckler & Koch

    $64.95
    HK USP & USPC Bobbed Hammer - Older Style (without the cutout) This part is compatible with older USP full-size & USPC firearms that have the old-style hammer already. Perfect for those who prefer the shorter, lower profile "bobbed" hammer. This...
    HKP-14552
    $64.95
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  • New - H&K G36 (5.56/.223) 2 Round Burst Disconnector Axle - HKP-16350
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    HK G36 Disconnector Axle - 2 Round Burst

    H&K Heckler & Koch

    $10.95
    H&K G36 (5.56/.223) 2 Round Burst Disconnector Axle
    HKP-16350
    $10.95
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  • New - H&K MSG90 (7.62x51/.308) -4 Rollers 7.96mm Set -Titanium - HKP-02451
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    HK MSG90 Locking Roller -4 - 7.96mm Set -Titanium

    H&K Heckler & Koch

    $329.95
    MSG90 (7.62x51/.308) -4 Rollers 7.96mm Set -Titanium Half moon rollers.  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 to order - plus-size rollers...
    HKP-02451
    $329.95
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  • New - H&K CC9 Extractor Buffer - HKP-22131
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    HK CC9 Extractor Buffer

    H&K Heckler & Koch

    $5.95
    H&K CC9 Extractor Buffer Made in Germany by H&K, the extractor buffer for the CC9 cushions extractor movement and reduces wear during cycling. Compatible With: HK CC9  
    HKP-22131
    $5.95
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  • New - H&K MR762 A4 1.0mm Gas Vent Screw - HKP-21954
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    HK MR762 A4 Gas Vent Screw - 1.0mm

    H&K Heckler & Koch

    $29.95
    H&K MR762 A4 1.0mm Gas Vent Screw German 1.0mm gas vent screw for MR762 A4. Provides less venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4
    HKP-21954
    $29.95
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  • Out Of Stock
    New - KNS Precision HK Push Button Take Down Pin - Large - HKP-21388 KNS Precision HK Push Button Take Down Pin - Large

    KNS Precision HK Push Button Take Down Pin - Large

    KNS Precision

    $24.99
    KNS Precision HK Push Button Take Down Pin - Large .275" This 7mm (.275") diameter take-down pin has a spring-loaded push button. When the button is depressed, the stainless steel keeper detents retract for easy pin removal. The pin is designed to...
    HKP-21388
    $24.99
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    $24.99
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  • New - H&K HK VP9SK Locking Block Guide - HKP-18309 HK VP9SK Locking Block Guide
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    HK VP9SK Locking Block Guide

    H&K Heckler & Koch

    $182.95
    H&K HK VP9SK Locking Block Guide Locking block guide complete, welded for frame on all HK VP9SK, VP40SK models. Compatible With: HK VP9SK HK VP40SK Does NOT fit the full size VP models
    HKP-18309
    $182.95
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  • New - H&K HK MR762 Drop Safety Catch Pin - HKP-16617
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    HK MR762 Drop Safety Catch Pin

    H&K Heckler & Koch

    $4.95
    H&K HK MR762 Drop Safety Catch Pin   Compatible With: HK MR762
    HKP-16617
    $4.95
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  • New - H&K HK MR762/417 Handguard Grooved Pin - HKP-16822
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    HK417, MR762 Handguard Pin - Grooved

    H&K Heckler & Koch

    $11.95
    H&K HK MR762, 417 Handguard Grooved Pin   Hechler & Koch grooved pin for HK MR762 and HK 417 handguards.   Compatible With: HK MR762 HK417
    HKP-16822
    $11.95
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  • New - HK G41 Firing Pin - HKP-02050
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    HK G41 Firing Pin

    H&K Heckler & Koch

    $24.95
    HK G41 Firing Pin
    HKP-02050
    $24.95
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  • New - H&K HK Mark 23 Secondary Recoil Compression Spring - HKP-16642
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    HK Mark 23 Secondary Recoil Compression Spring

    H&K Heckler & Koch

    $19.95
    H&K HK Mark 23 Secondary Recoil Compression Spring
    HKP-16642
    $19.95
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  • New - H&K HK Mark 23 Ejector - HKP-01778 HK Mark 23 Ejector
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    HK Mark 23 Ejector

    H&K Heckler & Koch

    $13.95
    HK Mark 23 Ejector
    HKP-01778
    $13.95
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