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 - HKP HK UMP, USC Lower Bolt Catch - HKP-19565 HK UMP, USC Lower Bolt Catch

    HK UMP, USC Lower Bolt Catch

    HKP HK Parts

    $22.95
    HK UMP & USC Bolt Catch For Last Round Hold Open New HK USA lower bolt catch. Compatible With: HK UMP HK USC
    HKP-19565
    $22.95
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    $22.95
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  • New - H&K HK MR762/417/G28 Firing Pin - HKP-16613
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    HK417, MR762, G28 Firing Pin

    H&K Heckler & Koch

    $64.95
    H&K HK MR762/417/G28 Firing Pin This firing pin is a must have wear and tear replacement item for your MR762 or HK 417 Firearm. Compatible With: MR762 HK 417 G28
    HKP-16613
    $64.95
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    New - H&K HK Mark 23/SOCOM Firing Pin - HKP-01670

    HK Mark 23, SOCOM Firing Pin

    H&K Heckler & Koch

    $47.95
    New HK German Mark 23 Firing Pin A great item to have on hand as these are a common wear item.  Compatbile With: Mark 23
    HKP-01670
    $47.95
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  • New - HKP HK 23E/13E (7.62x51/.308) & (5.56/.223) Firing Pin - Titanium - HKP-17770
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    HK23E, HK13E Firing Pin - Titanium - US

    HKP HK Parts

    $49.95
    HK23E, MM23E, 13E Firing Pin - Titanium Grade 6 weapons grade titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest, strongest firing...
    HKP-17770
    $49.95
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  • New - HKP HK 21E/11E (7.62x51/.308) Firing Pin - Titanium - HKP-17771
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    HK21E, HK11E Firing Pin - Titanium

    HKP HK Parts

    $49.95
    HK21E, MM21E, 11E Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made  in the USA.  A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest,...
    HKP-17771
    $49.95
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  • Out Of Stock
    New - H&K Trigger Pack Ejector Lever Axle - HKP-01091 HK Trigger Pack Ejector Lever Axle

    HK Trigger Pack Ejector Lever Axle

    H&K Heckler & Koch

    $19.95
    H&K Trigger Pack Ejector Lever Axle HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the ejector lever in place in the trigger pack. Fits all SEF & Ambidextrous style HK trigger packs...
    HKP-01091
    $19.95
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    $19.95
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  • On Sale
    New - MKE HK MP5 Rear Sights Locking Washer - HKP-22240
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    HK MP5 Rear Sights Locking Washer

    MKE

    Now: $1.95
    Was: $2.45
    MKE HK MP5 Rear Sights Locking Washer Secures the rear sight assembly on MKE and HK MP5 models to maintain proper alignment. Compatible With: Century Arms AP5 HK MP5/MP5K HK SP5/SP5K Will work with all 90 series firearms
    HKP-22240
    Now: $1.95
    Was: $2.45
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  • New - Lazy Wolf HK P30 & P2000 SA/DA Spartan Hammer - V1 - HKP-22186-M HK P30, P2000 SA/DA Spartan Hammer - V1
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    HK P30, P2000 SA/DA Spartan Hammer - V1

    Lazy Wolf

    $148.95
    Lazy Wolf HK P30 & P2000 SA/DA Spartan Hammer - V1 Transform the feel and look of your HK P30 or P2000 Single Action/Dual Action pistol with the Lazy Wolf Guns Skeletonized Spartan Hammer.  Redesigned geometry yields a superiorly smooth and...
    HKP-22186-M
    $148.95
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  • New - HKP HK USC, HK UMP Cocking Handle Assembly - HKP-19155
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    HK USC, UMP Cocking Handle Assembly - Complete

    HKP HK Parts

    $149.95
    HKP Cocking Handle Assembly for HK USC, UMP Complete cocking handle assembly for HK USC and HK UMP platforms. US-made and built to factory-spec dimensions and includes all required components for proper function and replacement. Includes: Steel cocking...
    HKP-19155
    $149.95
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  • New - H&K HK P7M8/P7M10/P7M13 Piston Roll Pin - HKP-01399
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    HK P7M8, P7M10, P7M13 Roll Pin - Gas Piston

    H&K Heckler & Koch

    $5.95
    Piston Roll Pin   Compatible With: P7M8 P7M10 P7M13
    HKP-01399
    $5.95
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    $5.95
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  • New - H&K HK Mark 23 Magazine Release - HKP-01772 HK Mark 23 Magazine Release
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    HK Mark 23 Magazine Release

    H&K Heckler & Koch

    $24.99
    HK Mark 23 Magazine Release  
    HKP-01772
    $24.99
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    $24.99
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  • New - H&K HK P2000/P2000SK/45/45C Right Slide Release Lever - HKP-01619
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    HK45, HK45 Compact, P2000, P2000SK Right Slide Release Lever

    H&K Heckler & Koch

    $49.95
    Right Slide Release Lever Compatible With: HK P2000 HK P2000SK HK45 HK45 Compact
    HKP-01619
    $49.95
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