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 Mark 23 Slide Release Spring - HKP-01788
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    HK Mark 23 Slide Release Spring

    H&K Heckler & Koch

    $15.99
    HK Mark 23 Slide Release Spring
    HKP-01788
    $15.99
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    $15.99
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  • New - H&K HK Mark 23 Decocker C-Clip - HKP-01629
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    HK Mark 23 Decocker C-Clip

    H&K Heckler & Koch

    $19.95
    HK Mark 23 Decocking C-Clip (Lock Washer)
    HKP-01629
    $19.95
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    $19.95
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  • New - H&K HK P30 V3 Series Hammer - HKP-02503 HK P30 V3 Series Hammer
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    HK P30 V3 Series Hammer

    H&K Heckler & Koch

    $55.95
    HK P30 V3 Series Hammer New German HK production. Compatible With: HK P30 V3 HK P30L V3 HK P30LS V3 HK P30SK V3
    HKP-02503
    $55.95
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    $55.95
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  • Out Of Stock
    New - H&K HK USP Old Style Catch - HKP-01932 HK USP Old Style Catch

    HK USP Old Style Catch

    H&K Heckler & Koch

    $39.95
    HK USP Old Style Catch   Compatible With: HK USP 9mm HK USP 40
    HKP-01932
    $39.95
    Out Of Stock
    Qty in Cart: 0
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    $39.95
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  • New - H&K HK MR556/416 Axis Rivet - HKP-16776
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    HK416, MR556 Axis Rivet

    H&K Heckler & Koch

    $4.95
    H&K HK MR556/416 Axis Rivet New HK German HK 416 Rivet. Compatible With: HK MR556 HK 416  
    HKP-16776
    $4.95
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    $4.95
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  • New - MM Registered Sear Pack - Re-Timed Hammer - Belt-Fed - HKP-16996 Re-Timed Hammer for Registered Sear Packs - Belt Fed
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    Re-Timed Hammer for Registered Sear Packs - Belt Fed

    Michaels Machines

    $198.95
    MM Registered Sear Pack - Re-Timed Hammer - Belt-Fed Billeted re-timed Hammer that has been professionally re-timed by Michael's Machines for belt-fed HK firearms with registered sear packs. A one piece billeted HK re-timed hammer is the necessary...
    HKP-16996
    $198.95
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    $198.95
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  • On Sale
    HK 9mm Pistol Flash Hider - 4 Prong - Threaded 1/2x28 - BLEMISHED USA HKP-01965-B HK 9mm Pistol Flash Hider - 4 Prong - Threaded 1/2x28 - BLEMISHED USA HKP-01965-B
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    HK 9mm Pistol Flash Hider - 4 Prong - Threaded 1/2x28 - BLEMISHED

    USA

    Now: $53.95
    Was: $74.95
    HK (9mm) 4 Prong Pistol Flash Hider - Threaded 1/2x28 - BLEMISHED VARYING CONDITION SHOWN IN PHOTOS - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...
    HKP-01965-B
    Now: $53.95
    Was: $74.95
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    Now: $53.95
    Was: $74.95
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  • New - H&K CC9 Firing Pin Spring - HKP-22138
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    HK CC9 Firing Pin Spring

    H&K Heckler & Koch

    $5.95
    H&K CC9 Firing Pin Spring Manufactured by H&K, this firing pin spring for the H&K CC9 pistol applies consistent tension to the firing pin, ensuring reliable ignition. Compatible With: HK CC9  
    HKP-22138
    $5.95
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    $5.95
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  • New - H&K CC9 Extractor Spring - HKP-22130
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    HK CC9 Extractor Spring

    H&K Heckler & Koch

    $5.95
    H&K CC9 Extractor Spring Made by H&K, the extractor spring for the cc9 pistol provides spring tension to the extractor for reliable cartridge extractions. Compatible With: HK CC9  
    HKP-22130
    $5.95
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    $5.95
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  • New - H&K P30S/P30SK Detent Pin Compression Spring - HKP-22030 HK P30S, P30SK Detent Pin Compression Spring
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    HK P30S, P30SK Detent Pin Compression Spring

    H&K Heckler & Koch

    $4.95
    H&K P30S/P30SK Detent Pin Compression Spring Compression spring for the detent pin on H&K P30 series pistols equipped with a manual safety. Designed to provide proper tension and reliable function of the safety selector mechanism. Compatible...
    HKP-22030
    $4.95
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    $4.95
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  • New - H&K MR556/MR762 A4 Disconnector - HKP-21969
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    HK MR556, MR762 A4 Disconnector

    H&K Heckler & Koch

    $18.95
    H&K MR556/MR762 A4 Disconnector Factory H&K disconnector for use in MR556 A4 and MR762 A4 platforms.   Compatible With: HK MR556 A1/A4 HK MR762 A1/A4  
    HKP-21969
    $18.95
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    $18.95
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  • On Sale
    New - HK 416 Bolt Hold Open Catch - HKP-99101 HK416 Catch - Bolt Hold Open
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    HK416 Catch - Bolt Hold Open

    USA

    Now: $19.95
    Was: $39.95
    HK 416 Bolt Hold Open Catch US-made bolt hold open catch for the HK 416. Compatible  With: HK 416 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE.  SALE IS FINAL.  
    HKP-99101
    Now: $19.95
    Was: $39.95
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    Now: $19.95
    Was: $39.95
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