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 MR762/417/G28 Ejection Cover Axle Spring - HKP-16753
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    HK417, MR762, G28 Ejection Cover Axle Spring

    H&K Heckler & Koch

    $9.95
    H&K HK MR762/417/G28 Ejection Cover Axle Spring New Hk German manufacture for the MR762 & HK 417 firearm. The spring is used on the axle and ejection port cover door to allow it to be closed and spring open. Compatible With: HK MR762 HK 417 HK...
    $9.95
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  • New - HKP HK 45/45 Tactical Titanium Firing Pin - HKP-17811
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    HK 45, 45T Firing Pin - Titanium

    HKP HK Parts

    $49.95
    Firing Pin HK45 & HK45 Tactical - Titanium - Grade 6 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...
    $49.95
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    New - H&K HK P7 Series Drop Safety Catch - HKP-01356 HK P7 Series Drop Safety Catch

    HK P7 Series Drop Safety Catch

    H&K Heckler & Koch

    $67.95
    HK P7 Series Drop Safety Catch Compatible With: P7 PSP P7M8 P7M10 P7M13
    $67.95
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  • New - H&K USC/SL8 (.45 ACP/5.56/.223) Rear Sight Spring - HKP-16516 HK USC, SL8 Sight Support Spring
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    HK USC, SL8 Sight Support Spring

    H&K Heckler & Koch

    $9.95
    H&K USC/SL8 (.45 ACP/5.56/.223) Rear Sight Spring
    $9.95
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  • New - H&K MR556/MR762 A4 Safety Lever - Right - HKP-21966 HK MR556, MR762 A4 Safety Lever - Right
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    HK MR556, MR762 A4 Safety Lever - Right

    H&K Heckler & Koch

    $13.95
    H&K MR556/MR762 A4 Safety Lever - Right H&K factory right-side selector lever for MR-series ambidextrous safety systems.  Compatible With: HK MR762 A1/A4 HK MR556 A1/A4
    $13.95
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    New - H&K HK SL8, HK G36 Top Rail Screw - HKP-16390 HK SL8, G36 Top Rail Screw

    HK SL8, G36 Top Rail Screw

    H&K Heckler & Koch

    $14.95
    HK SL8 & G36 Top Rail Screw  This rail screw is the standard length rail screw used for all SL8 and G36 top rails. With the exception of the dual and single option models. A must have part and an easy part to loose or strip. Grab yours to have...
    $14.95
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  • New - H&K HK MR762/417 Recoil Buffer Spring - HKP-16608
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    HK417, MR762 Recoil Buffer Spring

    H&K Heckler & Koch

    $24.95
    H&K HK MR762/417 Recoil Buffer Spring A must have wear and replacement part for your, HK 417 & MR762 firearm. Compatible With: HK MR762 HK 417
    $24.95
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  • New - HK P30/L Series Firing Pin - Black - HKP-02211
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    HK P30, P30L Firing Pin

    H&K Heckler & Koch

    $59.95
    Heckler and Koch Firing Pin for HK P30, P30L   German-made HK firing pin for the P30 and P30L. Steel construction, factory-spec, and designed for both 9mm and .40 S&W models. This is the correct OEM firing pin for restoring proper ignition...
    $59.95
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  • New - H&K HK USP Series Hammer Strut Pin - HKP-01633
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    HK USP Series Hammer Strut Pin

    H&K Heckler & Koch

    $7.95
    HK USP Series Hammer Strut Pin Cylinder Pin ISO 8750 - 1.5 x 8mm.  Compatible With: HK USP 9mm HK USP 40 S&W HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK USP Compact 45 ACP
    $7.95
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  • New - H&K HK MR556/416 Extractor - HKP-00036 HK416, MR556 Extractor
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    HK416, MR556 Extractor

    H&K Heckler & Koch

    $64.95
    HK 416 & MR556 Bolt Head Extractor New HK - German Compatible With: HK MR556 HK 416 CR556 HK M27  
    $64.95
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  • New - H&K HK MR556/416 Ejector For Bolt Head - HKP-00037
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    HK416, MR556 Ejector For Bolt Head

    H&K Heckler & Koch

    $23.95
    H&K HK MR556/416 Ejector For Bolt Head HK German factory part.  Compatible With: HK MR556 HK 416
    $23.95
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