Parts

Parts

At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.

Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.

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  • New - H&K MP5 40/10 Bolt Hold Open Axle Rod - HKP-01469
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    HK MP5 Bolt Hold Open Axle Rod - .40 S&W / 10mm, .357 SIG

    H&K Heckler & Koch

    $129.95
    Heckler and Koch HK MP5 Bolt Hold Open Axle Rod - 10mm, .40 S&W, .357 SIG This is the German HK MP5 40/10 bold hold open axle rod. Each unit has the 2 pre-drilled holes for activation screw and clamping sleeve. German HK manufacture. Compatible...
    HKP-01469
    $129.95
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    $129.95
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  • On Sale
    New - H&K MP5K/SP5K/SP89 9mm 4 Position Burst Complete Trigger Group - Push Pin - HKP-01498 HK MP5K, SP89 9mm 4 Position Burst Trigger Group - Push Pin - Complete
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    HK MP5K, SP89 9mm 4 Position Burst Trigger Group - Push Pin - Complete

    H&K Heckler & Koch

    Now: $2,789.95
    Was: $3,099.95
    H&K MP5K/SP89 9mm 4 Position Complete Trigger Group - Push Pin Each trigger group is brand new and factory fresh, direct from HK, specifically designed for push pin style factory full-autos. They are compatible with MP5K, MP5K-N, and MP5K-PDW models...
    HKP-01498
    Now: $2,789.95
    Was: $3,099.95
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    Now: $2,789.95
    Was: $3,099.95
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  • Out Of Stock
    New - H&K MP5 9mm Trigger Group FBI (0,1) Ambidextrous - HKP-01731 HK MP5 9mm Trigger Group FBI (0,1) Ambidextrous

    HK MP5 9mm Trigger Group FBI (0,1) Ambidextrous

    H&K Heckler & Koch

    $0.00
    HK MP5 Push Pin 0,1 Trigger Group - German  
    HKP-01731
    $0.00
    Out Of Stock
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  • Used - MP5F Parts Kit 3 Pos Navy Pistol or A2 Kit - HKP-01538
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    HK MP5F Parts Kit - 3 Pos Navy Trigger - A2 Stock

    H&K Heckler & Koch

    $2,695.95
    HK MP5F Parts Kit - 3 Pos Navy Trigger - A2 Stock This kit is built from original German components and includes the upgraded full-auto MP5F bolt group assembly and cold hammer forged 3-lug barrel. The MP5F configuration is known for its reinforced...
    HKP-01538
    $2,695.95
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    $2,695.95
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  • Used - H&K MP5 9mm Parts Kit 100% German - A3 Stock & SEF Lower - HKP-00770
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    HK MP5 9mm Parts Kit 100% German - A3 Stock - SEF Lower

    H&K Heckler & Koch

    $2,799.95
    MP5 Parts Kit - 9mm HK German MP5 9mm Used Parts Kit Complete (Minus Receiver). All MP5 Kits Include: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto 2 small and 1 large Push...
    HKP-00770
    $2,799.95
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    $2,799.95
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  • On Sale
    Used - Zeiss/Eltro Fero Z-51 Night Vision Scope-Parts Grade - HKP-15655 Fero Z-51 Night Vision Scope - Parts Grade
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    Fero Z-51 Night Vision Scope - Parts Grade

    Zeiss / Eltro

    Now: $397.95
    Was: $499.95
    Zeiss/Eltro Fero Z-51 Night Vision Scope-Parts Grade Used in non-working condition -SOLD AS IS. Comes shipped in the original German Army transportation case. Good for spare parts, props, etc. These are the last remaining units available. Some parts may...
    HKP-15655
    Now: $397.95
    Was: $499.95
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    Now: $397.95
    Was: $499.95
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  • New - H&K Shotgun Cleaning Kit - HKP-02105 H&K Shotgun Cleaning Kit H&K Heckler & Koch HKP-02105
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    Shotgun Cleaning Kit

    H&K Heckler & Koch

    $49.95
    New Factory HK 12GA Shotgun Cleaning Kit  This is the factory HK-approved and authorized cleaning kit.  No longer available from HK. Each Cleaning Kit Comes With:  Saf-T-Clad Cleaning Rod Accessory Adapter Section (#8-32) Patch Holder...
    HKP-02105
    $49.95
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    $49.95
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  • On Sale
    HK MP5K, SP89 Trigger Housing - SEF - Push Pin - USED HK MP5K, SP89 Trigger Housing - SEF - Push Pin - USED
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    HK MP5K, SP89 Trigger Housing - SEF - Push Pin - USED

    H&K Heckler & Koch

    Now: $199.95
    Was: $359.95
    Heckler and Koch HK MP5K, SP89 Trigger Housing - SEF - Push Pin - USED VARYING DONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Upgrade your HK MP5K or SP89 with this SEF...
    HKP-16551-USED
    Now: $199.95
    Was: $359.95
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    Now: $199.95
    Was: $359.95
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  • On Sale
    HK MP5, 90 Series, AP5 Sear - Friction - SEF and Navy Trigger Packs HK MP5, 90 Series, AP5 Sear - Friction - SEF and Navy Trigger Packs
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    HK MP5, 90 Series, AP5 Sear - Friction - SEF and Navy Trigger Packs

    MKE

    Now: $4.95
    Was: $8.95
    MKE AP5, MP5, 90 Series Friction Sear for SEF and Navy Trigger Packs Steel friction sear manufactured in Turkey for HK 90 Series trigger packs. Designed for use in SEF and Navy-style configurations, this component is commonly referred to as the catch...
    HKP-22521
    Now: $4.95
    Was: $8.95
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    Now: $4.95
    Was: $8.95
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  • UMP, USC Front Sight - Omega UMP, USC Front Sight - Omega
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    UMP, USC Front Sight - Omega

    OMEGA

    $9.95
    Omega UMP And USC Front Sight Front sight for HK UMP and HK USC Compatible With: HK UMP HK USC
    HKP-22513
    $9.95
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    Qty in Cart: 0
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    $9.95
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  • On Sale
    HK SL8 to G36 Conversion Kit - Incomplete - BLEMISHED HK SL8 to G36 Conversion Kit - Incomplete - BLEMISHED
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    HK SL8 to G36 Conversion Kit - Incomplete - BLEMISHED

    Special Weapons

    Now: $139.95
    Was: $319.95
    HK SL8 to G36 Conversion Kit - Incomplete - BLEMISHED VARYING CONDITION SHOWN - SOLD INVDIVIDUALLY DOES NOT INCLUDE STOCK OR AR-STYLE MAGAZINE ADAPTER. Will REQUIRE ADDITIONAL MACHINING TO THE STOCK: HINGE, BUTTON LOCKING SECTION, AND INDEX PLATE HOLE...
    HKP-99394
    Now: $139.95
    Was: $319.95
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    Qty in Cart: 0
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    Now: $139.95
    Was: $319.95
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  • On Sale
    HK SL8 Stock Cheek Riser Piece - BLEMISHED HK SL8 Stock Cheek Riser Piece - BLEMISHED
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    HK SL8 Stock Cheek Riser Piece - BLEMISHED

    H&K Heckler & Koch

    Now: $17.95
    Was: $34.95
    HK SL8 Stock Cheek Riser Piece - BLEMISHED   VARYING CONDITION SHOWN - SOLD INDIVIDUALLY   MISSING SPACER   COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...
    HKP-01701-B
    Now: $17.95
    Was: $34.95
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    Now: $17.95
    Was: $34.95
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