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 G36 Left Side Safety Lever - HKP-01875
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    HK G36 Left Side Safety Lever

    H&K Heckler & Koch

    $24.95
    HK G36 Left Side Safety Selector Lever
    HKP-01875
    $24.95
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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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  • On Sale
    HK Trigger Pack Ejector Lever Axle - USED HK Trigger Pack Ejector Lever Axle - USED
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    HK Trigger Pack Ejector Lever Axle - USED

    H&K Heckler & Koch

    Now: $12.95
    Was: $19.95
    HK Trigger Pack Ejector Lever Axle - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the...
    HKP-01091-USED
    Now: $12.95
    Was: $19.95
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    Was: $19.95
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  • HK91, G3 Magazine Release Set - USED HK91, G3 Magazine Release Set - USED
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    HK91, G3 Magazine Release Set - USED

    H&K Heckler & Koch

    $24.95
    Heckler and Koch Magazine Release Set (Left to Right) for HK91 and G3 HK-manufactured, used magazine release set for HK .308 pattern rifles. Complete left-to-right mag catch assembly with both push-button and paddle controls. Expect finish wear and...
    HKP-22466
    $24.95
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  • New - H&K CC9 Disassembly Safety Lever - HKP-22120
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    HK CC9 Disassembly Safety Lever

    H&K Heckler & Koch

    $5.95
    H&K CC9 Disassembly Safety Lever The CC9 disassembly safety lever prevents accidental discharge during disassembly by blocking the trigger mechanism. Compatible With: HK CC9    
    HKP-22120
    $5.95
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    $5.95
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  • New - H&K MR762 A4 1.0mm Gas Vent Screw - HKP-21954 HK MR762 A4 Gas Vent Screw - 1.0mm
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    HK MR762 A4 Gas Vent Screw - 1.0mm

    H&K Heckler & Koch

    $29.95
    Heckler and Koch MR762 A4 Gas Vent Screws German gas vent screw for MR762 A4 gas block. Specifications: Factory reference: 1.3mm is the common factory vent screw size for MR556 A4 Sizing reminder: Larger mm equals more venting, Smaller mm...
    HKP-21954-M
    $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
    Out Of Stock
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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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  • Out Of Stock
    New - HKP HK UMP, USC & G36, SL8 Sear - HKP-19555 HK UMP, USC & G36, SL8 Sear

    HK UMP, USC & G36, SL8 Sear

    HKP HK Parts

    $14.95
    HK Complete Sear G36, UMP, USC, SL8 Made in the USA Compatible With: HK UMP HK USC HK G36 HK SL8
    HKP-19555
    $14.95
    Out Of Stock
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    $14.95
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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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