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 - HKP HK MP5K Receiver Flat - Smooth Top - HKP-21550 HK MP5K Receiver Flat - Smooth Top

    HK MP5K Receiver Flat - Smooth Top

    HKP HK Parts

    $129.95
    HKP HK MP5K Receiver Flat - Smooth Top The MP5K receiver flat has been meticulously crafted by the original German tool and die maker of the LSC receiver flat, utilizing factory original German prints and specifications. This receiver boasts a flat top,...
    HKP-21550
    $129.95
    Out Of Stock
    Qty in Cart: 0
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    $129.95
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  • On Sale
    HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED
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    HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED

    FA Franklin Armory

    Now: $599.95
    Was: $849.95
    HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED INCOMPLETE - MISSING GRIP COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN...
    HKP-20642-B
    Now: $599.95
    Was: $849.95
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    Now: $599.95
    Was: $849.95
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  • Out Of Stock
    On Sale
    New - HKP Glock 17 Gen 5 Stand Off Device - Black - BLEMISHED - HKP-19263-B HKP Glock 17 Gen 5 Stand Off Device - Black - BLEMISHED

    HKP Glock 17 Gen 5 Stand Off Device - Black - BLEMISHED

    HKP HK Parts

    Now: $32.95
    Was: $109.95
    Copy of HKP Glock 17 Gen 5 Stand Off Device - Black - BLEMISHED INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HK Parts stand off is...
    HKP-19263-B
    Now: $32.95
    Was: $109.95
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    Now: $32.95
    Was: $109.95
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  • New - HKP HK UMP Extended Top Rail - Red - HKP-21049 HK UMP Extended Top Rail - Red
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    HK UMP Extended Top Rail - Red

    HKP HK Parts

    $59.95
    HKP HK UMP Extended Top Rail - Red Nearly an 1" longer than the standard length top rail. This picatinny top rail allows the user to add an eotech, aimpoint, acog, etc. Made in the USA from aluminum material and hard coat anodize in a beutiful Red...
    HKP-21049
    $59.95
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    $59.95
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  • Out Of Stock
    New - Comp-Tac HK USP .45/.40/9mm Comp Carry Holster – Right Hand - HKP-20976 HK USP Holster - Comp Carry RH - 9mm, .40 S&W, .45 ACP

    HK USP Holster - Comp Carry RH - 9mm, .40 S&W, .45 ACP

    Comp-Tac

    $79.95
    Rail Mount Compensator & Comp Weight™ Compensator International Holster – Right Hand for HK USP .45/.40/9mm At last a custom made Comp-Tac International OWB holster for your HK pistol that allows you to have the Rail Mount Compensator,...
    HKP-20976
    $79.95
    Out Of Stock
    Qty in Cart: 0
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    $79.95
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  • On Sale
    New - TPM - Drake Bolt Knob - Titanium - HKP-20782 Bolt Knob - Drake - Titanium
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    Bolt Knob - Drake - Titanium

    Tactical Precision MFG

    Now: $24.95
    Was: $44.99
    Drake Bolt Knob - Aluminum These bolt knobs are made from aluminum and are finished a in midnight bronze Cerakote and will fit any 5/16-24 threaded bolt handle. Features: Material: aluminum Color: titanium Threading: 5/16-24 Compatible...
    HKP-20782
    Now: $24.95
    Was: $44.99
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    Now: $24.95
    Was: $44.99
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  • On Sale
    New - TPM - Remington 700 - 30 MOA - Scope Base Short Action - HKP-20765 Remington 700 - 30 MOA - Scope Base Short Action
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    Remington 700 - 30 MOA - Scope Base Short Action

    Tactical Precision MFG

    Now: $35.95
    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-20765
    Now: $35.95
    Was: $76.99
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    Now: $35.95
    Was: $76.99
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  • On Sale
    Used - H&K HK SL8 Adjustable Buttstock Piece - Used - Black - HKP-20052 HK SL8 Adjustable Buttstock Piece - Used
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    HK SL8 Adjustable Buttstock Piece - Used

    H&K Heckler & Koch

    Now: $9.95
    Was: $29.95
    H&K HK SL8 Adjustable Buttstock Piece - Used
    HKP-20052
    Now: $9.95
    Was: $29.95
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    Now: $9.95
    Was: $29.95
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  • New - HKP HK33 11" LH Cocking Tube - HKP-18892 HK33 Cocking Tube - 11" - Left Hand
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    HK33 Cocking Tube - 11" - Left Hand

    HKP HK Parts

    $99.95
    HKP HK33 11" Left Hand Cocking Tube This is the one and only left handed cocking tube for the HK33 cocking tube made in the US. Made to the exact HK specifications as the factory HK33 German cocking tube. Overall length is 11".
    HKP-18892
    $99.95
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    $99.95
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  • New - H&K HK SL8 Adjustable Buttstock Piece - Black - HKP-17837 HK SL8 Adjustable Buttstock Piece - Black
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    HK SL8 Adjustable Buttstock Piece - Black

    H&K Heckler & Koch

    $39.95
    HK SL8 Adjustable Buttstock Piece - Black Newer style that is black in color. Please note that the pic shows a gray unit but this offering is all black.
    HKP-17837
    $39.95
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    $39.95
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  • New - H&K HK G36K Factory Blank Firing Adapter - HKP-16974 HK G36K Factory Blank Firing Adapter
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    HK G36K Factory Blank Firing Adapter

    H&K Heckler & Koch

    $269.95
    H&K HK G36K Factory Blank Firing Adapter G36K Factory HK blank firing adapter. This adapter is date coded and comes complete with the spring clip installed. Compatible With: G36K exclusively
    HKP-16974
    $269.95
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    $269.95
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  • New - H&K 10 Round HK USP .40 S&W Full Size Standard Magzine Floor Plate - Black - HKP-01439 HK USP Full Size Magazine Floorplate - .40 S&W - 10 Round - Standard
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    HK USP Full Size Magazine Floorplate - .40 S&W - 10 Round - Standard

    H&K Heckler & Koch

    $8.95
    10 Round HK USP .40 S&W Full Size Standard Magzine Floor Plate Compatible With: HK USP 40 Full Size S&W 10 Round Magazine
    HKP-01439
    $8.95
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    $8.95
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