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 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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  • 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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  • Out Of Stock
    New - Michaels Machines HK21E/PSG1/MSG90 Extractor - HKP-21632 HK21E, HK23E, PSG1, PTR Extractor

    HK21E, HK23E, PSG1, PTR Extractor

    Michaels Machines

    $275.95
    Michaels Machines HK21E, HK23E, PSG1, MSG90 Extractor Replacement extractor for HK21E, HK23E, PSG1, and MSG90 bolt heads. Extractors are a known wear item on these platforms and are no longer produced by HK. The Michaels Machines extractor is a precise,...
    HKP-21632
    $275.95
    Out Of Stock
    Qty in Cart: 0
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    $275.95
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  • New - H&K VP9SK, VP40SK Right Side Grip Panel - Medium - Black - HKP-18299 HK VP9SK, VP40SK Right Side Grip Panel - Medium - Black
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    HK VP9SK, VP40SK Right Side Grip Panel - Medium - Black

    H&K Heckler & Koch

    $17.95
    H&K VP9SK, VP40SK Right Side Grip Panel - Medium - Black New HK German manufactured. Left side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SK HK VP40SK
    HKP-18299
    $17.95
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  • Out Of Stock
    New - HKP HK VP9, HK VP9SK, HK VP40 Enhanced Slide Cap w/ Firing Pin Window - Titanium - HKP-17943 HK VP9,  VP9SK, VP40 Enhanced Slide Cap - Firing Pin Window - Titanium

    HK VP9, VP9SK, VP40 Enhanced Slide Cap - Firing Pin Window - Titanium

    HKP HK Parts

    $59.95
    Enhanced Slide Plate Cover VP9, VP9SK & VP40 - Titanium With Firing Pin Viewing Window Enhanced HK VP9, VP40 Titanium slide plate in natural titanium alloy. The "enhanced" slide plate cover includes the firing pin viewing window. The enhanced slide...
    HKP-17943
    $59.95
    Out Of Stock
    Qty in Cart: 0
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    $59.95
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  • New - H&K HK VP9SK Grip Panel Left Side - Large - FDE - HKP-18959 HK VP9SK Grip Panel Left Side - Large - FDE
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    HK VP9SK Grip Panel Left Side - Large - FDE

    H&K Heckler & Koch

    $19.95
    H&K HK VP9SK Grip Panel Left Side - Large - FDE New HK German manufactured. Left side large size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SK
    HKP-18959
    $19.95
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    $19.95
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  • New - H&K HK VP9/VP9SK, HK VP40 Incomplete Trigger - Black - HKP-16777 HK VP9, VP9SK, VP40 Trigger - Incomplete
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    HK VP9, VP9SK, VP40 Trigger - Incomplete

    H&K Heckler & Koch

    $16.95
    H&K HK VP9/VP9SK, HK VP40 Incomplete Trigger - Black
    HKP-16777
    $16.95
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    $16.95
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  • New - H&K HK USP Expert Bobbed Hammer - HKP-18198 HK USP Expert Bobbed Hammer
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    HK USP Expert Bobbed Hammer

    H&K Heckler & Koch

    $29.95
    USP Expert Bobbed Hammer Old Style The USP Expert Hammer works with HK USP Expert variants. Compatible With: HK USP Expert 9mm HK USP Expert 40 HK USP Expert 45
    HKP-18198
    $29.95
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  • New - HK G41 Firing Pin Spring - HKP-16060
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    HK G41 Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    HK G41 Firing Pin Spring Compatible With: HK G41
    HKP-16060
    $9.95
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    $9.95
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  • New - H&K HK Mark 23 Hammer - HKP-01578
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    HK Mark 23 Hammer

    H&K Heckler & Koch

    $79.95
    HK Mark 23 Hammer Factory new hammer for the Mark 23 or SOCOM pistol.
    HKP-01578
    $79.95
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    $79.95
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  • New - H&K HK P2000 Magazine Disconnect Lever Axle - HKP-16648
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    HK P2000 Magazine Disconnect Lever Axle

    H&K Heckler & Koch

    $5.95
    H&K HK P2000 Magazine Disconnect Lever Axle
    HKP-16648
    $5.95
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    $5.95
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  • New - H&K HK USP Old Style Complete Sear - HKP-16991 HK USP Complete Sear - Old Style
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    HK USP Complete Sear - Old Style

    H&K Heckler & Koch

    $59.95
    H&K HK USP Old Style Complete Sear This sear is specific to the USP 9mm-Old Style.
    HKP-16991
    $59.95
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    $59.95
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