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 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.    
    HKP-00290
    $20.95
    Out Of Stock
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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  
    HKP-01868
    $19.95
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  • New - HK G36/SL8 (5.56/.223) Cocking Handle Spring - HKP-18369 HK G36, SL8 Cocking Handle Spring - US
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    HK G36, SL8 Cocking Handle Spring - US

    $9.95
    G36 Cocking Handle Spring- US Made   Compatible With: G36 All variants SL8 All variants
    HKP-18369
    $9.95
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  • New - H&K HK SEF & Navy 3 Position Trigger Spring - HKP-22178
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    HK90 Trigger Spring- 3 Position - SEF and Navy

    H&K Heckler & Koch

    $9.95
    H&K HK SEF & Navy 3 Position Trigger Spring Elevate your HK 90 series performance with a factory-fresh trigger spring, designed for both semi and full-auto models. These are an essential upgrade for any 90 series owner, ensuring optimal...
    HKP-22178
    $9.95
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  • Out Of Stock
    Used - KDG HK MR762, HK 417, HK G28 Ambidextrous Magazine Release - Black - HKP-19204 Used - KDG HK MR762, HK 417, HK G28 Ambidextrous Magazine Release - Black - HKP-19204

    HK417, MR762, G28 Magazine Release - Ambidextrous

    KDG Kinetic Development Group

    $169.95
    Magazine Release - Ambi - HK MR762, 417, G28 The HK 762 Ambi (Ambidextrous) Magazine Release. This is the first ambidextrous magazine release for the HK 417 variant rifles.  The mag release is a lever instead of a button; where the release has been...
    HKP-19204
    $169.95
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    $169.95
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  • New - H&K VP9SK, VP40SK Right Side Grip Panel - Small - Black - HKP-18296 HK VP9SK, VP40SK Right Side Grip Panel - Small - Black
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    HK VP9SK, VP40SK Right Side Grip Panel - Small - Black

    H&K Heckler & Koch

    $17.95
    H&K VP9SK, VP40SK Right Side Grip Panel - Small - 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-18296
    $17.95
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  • New - H&K HK USP .45 ACP Extractor - HKP-01275 HK USP .45 ACP Extractor
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    HK USP .45 ACP Extractor

    H&K Heckler & Koch

    $49.95
    HK German Extractor for USP 45 & USP Tactical .45 Full Size Pistol Compatible With: USP 45 USP 45 Tactical USP 45 Expert, Elite
    HKP-01275
    $49.95
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  • New - H&K HK USP .45 ACP Buffer Spring Retainer Roll Pin - HKP-02267
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    HK USP Retainer Roll Pin, Buffer Spring - .45 ACP

    H&K Heckler & Koch

    $7.95
    HK USP .45 ACP Buffer Spring Retainer Roll Pin  
    HKP-02267
    $7.95
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  • Out Of Stock
    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
    HKP-16421
    $8.95
    Out Of Stock
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  • New - H&K G36/SL8 (5.56/.223) Ejector Spring - HKP-01867
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    HK G36, SL8 Ejector Spring

    H&K Heckler & Koch

    $35.95
    HK G36 & SL8 Series Ejector Spring - HK German This is a great item to have on hand as this part is prone to wear and breakage.
    HKP-01867
    $35.95
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  • HK MP5, AP5 Firing Pin HK MP5, AP5 Firing Pin
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    HK MP5, AP5 Firing Pin

    MKE

    $14.95
    MKE HK MP5/AP5 Firing Pin - 9mm MKE firing pin for HK MP5 platforms. Compatible With: HK MP5/SP5 Century Arms AP5/AP5P Zenith ZF-5/ZF-5K PTR 9CT/9KT
    HKP-22243
    $14.95
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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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    Was: $2.45
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