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 UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Sear Spring - HKP-01866

    HK G36, UMP Sear Spring

    H&K Heckler & Koch

    $8.95
    HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.  
    HKP-01866
    $8.95
    Out Of Stock
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    $8.95
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  • New - HKP HK MP5/MP5K Extractor - Enhanced Coated Polish - HKP-22181-M HK MP5, MP5K Extractor - Coated and Polished
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    HK MP5, MP5K Extractor - Coated and Polished

    HKP HK Parts

    $44.95
    HKP HK MP5/MP5K Extractor - Enhanced - Coated and Polished  Built for dependable performance, this coated and polished extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Available...
    HKP-22181-M
    $44.95
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  • New - H&K HK VP9/VP9SK, VP40 Main Spring For Firing Pin - HKP-16829
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    HK VP9, VP9SK, VP40 Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    H&K HK VP9/VP9SK, VP40 Main Spring For Firing Pin German HK. Compatible With: VP9 VP9 Tactical VP9SK VP40 VP40 Tactical
    HKP-16829
    $9.95
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  • New - HKP HK 416 Ejection Port Axle - HKP-20039
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    HK416 Ejection Port Axle

    H&K Heckler & Koch

    $4.95
    Ejection Port Axle - Steel- HK 416 New HK USA manufacture for the HK 416 family of firearms. This is the axle that holds the ejection port cover in place on the upper receiver. 
    HKP-20039
    $4.95
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  • New - H&K HK MR556/762/416/417 Bolt Catch Spring - HKP-16661
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    HK416, MR556, HK417, MR762 Bolt Catch Spring

    H&K Heckler & Koch

    $6.95
    H&K HK MR556/762/416/417 Bolt Catch Spring Compatible With: HK MR556 HK 416 HK MR762 HK 417
    HKP-16661
    $6.95
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  • New - MKE HK MP5/K 9mm Extractor - HKP-21919 HK MP5, SP5K Extractor - 9mm
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    HK MP5, SP5K Extractor - 9mm

    MKE

    $19.95
    MKE HK MP5/K 9mm Extractor Keep your MP5 or MP5K running strong with this MKE 9mm extractor. Perfect for replacing a worn part or completing a build, it’s made to HK specs for smooth, reliable performance you can count on. Compatible With: HK MP5,...
    HKP-21919
    $19.95
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  • On Sale
    New - HKP HK VP9/VP40 Enhanced Support Sleeve - Black - BLEMISHED - HKP-18677-BL-B HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED
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    HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED

    HKP HK Parts

    Now: $9.95
    Was: $19.95
    HKP HK VP9/VP40 Enhanced Support Sleeve COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The support sleeve in the VP series pistols is a crucial component that...
    HKP-18677-BL-B
    Now: $9.95
    Was: $19.95
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  • Out Of Stock
    New - H&K 93/53/33 (5.56/.223) Extractor - HKP-00189 HK33, HK53, HK93 Extractor

    HK33, HK53, HK93 Extractor

    H&K Heckler & Koch

    $67.95
    H&K 93, 53, & 33 (5.56/.223) Extractor A great replacement for your HK or clone. A high wear item that can become worn, chipped, and non-relaible. A must have spare part. German HK factory fresh production.
    HKP-00189
    $67.95
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  • New - H&K Burst Eccentric Bushing - HKP-02647 HK Burst Eccentric Bushing
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    HK Burst Eccentric Bushing

    H&K Heckler & Koch

    $59.95
    HK Burst Eccentric Bushing HK German factory part is found in all HK burst trigger packs. This part is in between the hammer shank hole and the inside of the trigger box hammer axle spacer. This part is one of the most common wear...
    HKP-02647
    $59.95
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  • New - H&K HK P7M8/P7M13 Detent, Piston - HKP-16327
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    HK P7M8, P7M13 Detent - Gas Piston

    H&K Heckler & Koch

    $9.95
    H&K HK P7M8/P7M13 Detent, Piston Compatible With: P7M8 P7M13
    HKP-16327
    $9.95
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  • New - H&K HK VP9/VP9SK, VP40 Left Side Slide Release Lever - Black - HKP-16787 HK VP9, VP9SK, VP40 Left Side Slide Release Lever
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    HK VP9, VP9SK, VP40 Left Side Slide Release Lever

    H&K Heckler & Koch

    $19.95
    H&K HK VP9/VP9SK, VP40 Left Side Slide Release Lever - Black New HK VP series German left side slide release lever for slide. Compatible With: HK VP9, VP9L HK VP9SK HK VP9A1 F HK VP9A1 K HK VP40
    HKP-16787
    $19.95
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  • New - H&K HK VP9/VP9SK, VP40 Drop Safety Elbow Spring - HKP-16835
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    HK VP9, VP9SK, VP40 Elbow Spring, Drop Safety

    H&K Heckler & Koch

    $6.95
    H&K HK VP9/VP9SK, VP40 Drop Safety Elbow Spring   Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40
    HKP-16835
    $6.95
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