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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  • Out Of Stock
    New - B&T APC9 Selector Position Lock Spring - HKP-21764 B&T APC9 Selector Position Lock Spring

    B&T APC9 Selector Position Lock Spring

    B&T Brugger & Thomet

    $4.95
    B&T APC9 Selector Position Lock Spring Compatible With: APC Series Standard receiver Glock receiver Sig receiver
    HKP-21764
    $4.95
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    $4.95
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  • Out Of Stock
    New - B&T APC9 Pro Gun Mat - HKP-21748

    B&T APC9 Pro Gun Mat

    B&T Brugger & Thomet

    $20.00
    B&T APC9 Pro Gun Mat  Specifications: 6mm thick 17x10.75
    HKP-21748
    $20.00
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    $20.00
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  • New - H&K HK G3 Front Sight Ring - HKP-21641
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    HK G3 Front Sight Ring

    H&K Heckler & Koch

    $7.95
    H&K HK G3 Front Sight Ring Factory HK replacement front sight ring. Compatible With: HK G3
    HKP-21641
    $7.95
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    $7.95
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  • On Sale
    HK MP5K Parts Kit - .40 S&W - Pistol Build HK MP5K Parts Kit - .40 S&W - Pistol Build
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    HK MP5K Parts Kit - .40 S&W - Pistol Build

    Now: $1,463.95
    Was: $1,829.95
    HKP MP5K .40 S&W Pistol Build Kit MP5K .40 complete pistol build kit. Featuring the latest in highest quality components for an unparalleled build. Equipped with a 9/16x24 3-lug threaded barrel to accept a wide variety of muzzle devices and...
    HKP-21534
    Now: $1,463.95
    Was: $1,829.95
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  • On Sale
    New - B&T HK G36/SL8 Brass Catcher - HKP-21530 HK G36, SL8 Brass Catcher
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    HK G36, SL8 Brass Catcher

    B&T Brugger & Thomet

    Now: $255.95
    Was: $284.95
    B&T HK G36 & SL8 Brass Catcher This brass catcher is expertly crafted for the HK G36. The B&T QD attachment system enables quick mounting and dismounting. For optimal compatibility, the G36 must be equipped with a B&T quad rail handguard...
    HKP-21530
    Now: $255.95
    Was: $284.95
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  • On Sale
    New - HKP HK P2000 +7 Magazine Extension Kit - HKP-21527-M HK P2000 Magazine Extension Kit - +7
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    HK P2000 Magazine Extension Kit - +7

    HKP HK Parts

    Now: $51.95
    Was: $64.99
    HKP HK P2000 +7 Magazine Extension Kit  This listing is for the magazine extension ONLY.  This is not a complete magazine.  The referenced magazine capacity is the total capacity once the extension...
    HKP-21527-M
    Now: $51.95
    Was: $64.99
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    Was: $64.99
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  • Out Of Stock
    New - H&K HK MR762 Factory Flash Hider - 15x1 RH - HKP-21481 HK MR762 Factory Flash Hider - 15x1 RH

    HK MR762 Factory Flash Hider - 15x1 RH

    H&K Heckler & Koch

    $54.95
    H&K HK MR762 Factory Flash Hider - 15x1 RH Factory flash hider with 15x1 right-hand threads. Perfect for completing a build or replacing a worn or missing part. Compatible With: HK MR762  
    HKP-21481
    $54.95
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  • On Sale
    New - B&T HK G36/MP7 Picatinny Side Rail - HKP-21419 HK MP7, G36 Picatinny Side Rail
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    HK MP7, G36 Picatinny Side Rail

    B&T Brugger & Thomet

    Now: $51.95
    Was: $57.95
    B&T HK G36/MP7 Picatinny Side Rail Comes with all mounting hardware. Each rail is sold individually. Compatible With: HK G36 HK MP7 Specs: 127mm length
    HKP-21419
    Now: $51.95
    Was: $57.95
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  • On Sale
    New - H&K/Hogue Exemplar Manual Folder - HKP-21366 Exemplar Manual Folder - Clip Point 3.25"
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    Exemplar Manual Folder - Clip Point 3.25"

    Hogue

    Now: $161.95
    Was: $179.95
    Heckler and Koch and Hogue Exemplar Manual Folder Blade: 3.25" Clip Point Blade - Stone TumbledSolid Black G10 Frame Features: Locking mechanism: able lock (ambidextrous bar lock enhanced) Frame: solid black G10 Deep carry pocket clip (right or left...
    HKP-21366
    Now: $161.95
    Was: $179.95
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    Was: $179.95
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  • On Sale
    New - H&K HK 416 14.5 Upper Receiver Assembly - OTB - Unfired - HKP-02095 HK416 Upper Receiver Assembly - 14.5" Barrel - OTB - Unfired
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    HK416 Upper Receiver Assembly - 14.5" Barrel - OTB - Unfired

    H&K Heckler & Koch

    Now: $9,999.95
    Was: $14,499.95
    Heckler and Koch Unfired "BF" Date Coded HK Factory German 416 14.5" Upper Kit No FFL is required. This upper assembly is only considered a part. This is a rare offering. All NFA rules apply - Check your local short barrel rifle regulations...
    HKP-02095
    Now: $9,999.95
    Was: $14,499.95
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  • On Sale
    New - TPM - Remington 700 - 30 MOA - Scope Base Long Action -Tungsten - HKP-20772 Remington 700 - 30 MOA - Scope Base Long Action -Tungsten
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    Remington 700 - 30 MOA - Scope Base Long Action -Tungsten

    Tactical Precision MFG

    Now: $38.95
    Was: $76.99
    TPM Remington 700 Scope Base Long Action 30 MOA These tight tolerance, bomb proof scope rail allow the shooter to make best use of the scope's elevation adjustment for those long-range shots and engagements with 30 MOA options and will match factory...
    HKP-20772
    Now: $38.95
    Was: $76.99
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  • Out Of Stock
    New - H&K HK 416 & HK MR556 Assembly Wrench Tool - HKP-20616 HK416, MR556 Assembly Wrench Tool

    HK416, MR556 Assembly Wrench Tool

    H&K Heckler & Koch

    $699.95
    Heckler and Koch HK 416 and HK MR556 Assembly Wrench Tool Factory HK German multi-tool for the HK416 and MR556. The perfect tool for a complete breakdown. 
    HKP-20616
    $699.95
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    $699.95
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