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 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...
    $19.95
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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...
    $149.95
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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  
    $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
    $49.95
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    New - H&K G36/SL8 (5.56/.223) Factory Recoil Buffer - HKP-00290

    HK G36, SL8 Recoil Buffer - Factory

    H&K Heckler & Koch

    $20.95
    HK G36 Or SL8 Factory Recoil Buffer   A critical spare part as these buffers deteriorate with usage and time.    
    $20.95
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  • New - H&K HK G36/SL8/MR762/417 Bolt Head Ejector - HKP-01868
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    HK G36, SL8, HK417, MR762 Bolt Head Ejector

    H&K Heckler & Koch

    $19.95
    H&K HK G36/SL8/MR762/417 Bolt Head Ejector   Compatible With: HK MR762 HK 417 HK G36 HK SL8  
    $19.95
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  • New - HK G36/SL8 (5.56/.223) Cocking Handle Spring - HKP-18369 HK G36, SL8 Spring - Cocking Handle - US
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    HK G36, SL8 Spring - Cocking Handle - US

    $9.95
    G36 Cocking Handle Spring- US Made   Compatible With: G36 All variants SL8 All variants
    $9.95
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    $9.95
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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...
    $49.95
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  • New - H&K MR556/MR762/416/417 Ambidextrous Selector Clamping Sleeve - HKP-22062
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    HK416, MR556, HK417, MR762 Selector Lever Clamping Sleeve - Ambi

    H&K Heckler & Koch

    $5.95
    H&K MR556/MR762/416/417 Ambidextrous Selector Clamping Sleeve German H&K factory clamping sleeve for ambidextrous selector levers on MR556, MR762, HK416, and HK417. Compatible With: HK MR556 A1/A4 HK416 HK MR762 A1/A4 HK417
    $5.95
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  • New - H&K MR556 A4/416 A5 1.9mm Gas Vent Screw - HKP-22050
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    HK416 A5, MR556 A4 Gas Vent Screw - 1.9mm

    H&K Heckler & Koch

    $32.99
    H&K MR556 A4/416 A5 1.9mm Gas Vent Screw German 1.9mm gas vent screw for MR556 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: HK MR556 A4 HK416 A5
    $32.99
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  • New - H&K 93/53/33 & HK21E/23E Cocking Handle Pivot Pin - HKP-21746 HK33, HK53,  HK93, HK21E, 23E Pin - Pivot - Cocking Handle
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    HK33, HK53, HK93, HK21E, 23E Pin - Pivot - Cocking Handle

    H&K Heckler & Koch

    $18.95
    H&K 93/53/33 & HK21E/23E Cocking Handle Pivot Pin This genuine H&K cocking handle pivot pin allows smooth operation of the charging handle assembly. While the nipple on the 21E pin is slightly shorter than the 33 pin, it remains fully...
    $18.95
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    New - H&K HK USPC LEM Firing Pin Block Spring - HKP-16421

    HK USP Compact LEM Block Spring - Firing Pin

    H&K Heckler & Koch

    $8.95
    H&K HK USPC LEM Firing Pin Block Spring   Compatible With: HK USP Compact 9mm - LEM HK USP Compact 40 - LEM HK USP Compact 45 ACP - LEM
    $8.95
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