HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • On Sale
    New - HKP HK 53/51 (5.56/.223) Urbach Style Fluted Barrel Extension - Threaded 15x1 RH - HKP-17638 HK51, HK53 Barrel Extension - Fluted - Urbach Style - Threaded 15x1 RH
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    HK51, HK53 Barrel Extension - Fluted - Urbach Style - Threaded 15x1 RH

    HKP HK Parts

    Now: $82.95
    Was: $149.95
    HKP HK 53/51 (5.56/.223) Urbach Style 8 inch Fluted Barrel Extension - Threaded 15x1 RH This 8" long fluted barrel extension is designed to extend the overall length of a 51 or 53 barrel to meet the 16" legal requirement. Ideal for those using an 8"...
    HKP-17638
    Now: $82.95
    Was: $149.95
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    Now: $82.95
    Was: $149.95
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  • New - HKP HK PSG1/93/33 (5.56/.223) MSG90 Style Match Barrel - HKP-17008 HK33, HK93, PSG1 Match Barrel - 5.56 / .223 - 26"- MSG90 Style
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    HK33, HK93, PSG1 Match Barrel - 5.56 / .223 - 26"- MSG90 Style

    HKP HK Parts

    $499.95
    HK PSG-1, MSG-90 Style 5.56, .223 HK 93, HK 33 Match Barrel: This is the finest PSG1 barrel you can get for your custom HK93, SG1, PSG1 style build in 5.56. Built on trusted tooling to HK specifications.  Perfect for that custom build or the for the...
    HKP-17008
    $499.95
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    $499.95
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  • Out Of Stock
    New - HKP MP5 40/10 Trigger Group 2 Position Housing (0,1) - Safe/Semi Only - Clipped & Pinned - HKP-17248 HK MP5 Trigger Group - 2 Position 0,1 Safe Semi Only - Clipped and Pinned - .40 S&W, 10mm

    HK MP5 Trigger Group - 2 Position 0,1 Safe Semi Only - Clipped and Pinned - .40 S&W, 10mm

    HKP HK Parts

    $529.95
    MP5 40/10 Trigger Group 2 Position Housing 0,1- Safe, Semi Only Finally a lower cost alternative to the spendy & rare all-German HK FBI or 0,1 ambidextrous trigger group in a 2 position factory German HK housing. Each trigger group features a...
    HKP-17248
    $529.95
    Out Of Stock
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    $529.95
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  • Out Of Stock
    New - H&K MP5 40/10 4 Position (0,1,3,F Pictogram) Trigger Housing - Clipped & Pinned - HKP-02129 HK MP5 Trigger Housing - 4 Position 0,1,3,F Pictogram - Clipped and Pinned - .40 S&W, 10mm

    HK MP5 Trigger Housing - 4 Position 0,1,3,F Pictogram - Clipped and Pinned - .40 S&W, 10mm

    H&K Heckler & Koch

    $0.00
    H&K MP5 40/10 4 Position (0,1,3,F Pictogram) Trigger Housing - Clipped & Pinned This trigger housing features (0,1,3,F) pictogram markings and is specifically designed for the HK MP5 40/10 series. The housing is already clipped and pinned for...
    HKP-02129
    $0.00
    Out Of Stock
    Qty in Cart: 0
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    $0.00
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  • New - H&K MP5K/SP89 9mm SEF Contoured Trigger Housing - Push Pin - HKP-16551 HK MP5K, SP89 Trigger Housing - SEF - Contoured - Push Pin - 9mm
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    HK MP5K, SP89 Trigger Housing - SEF - Contoured - Push Pin - 9mm

    H&K Heckler & Koch

    $324.95
    H&K MP5K/SP89 9mm SEF Contoured Trigger Housing - Push Pin Upgrade your HK MP5K or SP89 with this SEF contoured trigger housing, featuring ergonomic finger grooves for enhanced handling. This factory push pin housing is manufactured by HK Germany,...
    HKP-16551
    $324.95
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    $324.95
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  • New - H&K MP5K/SP89/SP5K 9mm Incomplete End Cap - HKP-18208 HK MP5K, SP89, SP5K End Cap, Incomplete - 9mm
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    HK MP5K, SP89, SP5K End Cap, Incomplete - 9mm

    H&K Heckler & Koch

    $54.95
    HK Factory German MP5K, SP-89, SP5K End Cap - Incomplete Each pistol end cap is OEM HK German MP5K, MP5K-N, SP5K, SP89 stripped end cap.  Compatible With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K clones or other custom builds
    HKP-18208
    $54.95
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    $54.95
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  • New - H&K MP5K 3 Position (0,1,F) Navy Ambidextrous Trigger Group - HKP-00405 HK MP5K Trigger Group - Ambi Navy 3 Position 0,1,F
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    HK MP5K Trigger Group - Ambi Navy 3 Position 0,1,F

    H&K Heckler & Koch

    $2,499.95
    HK MP5K 3 Position (0,1,F) Navy Ambidextrous Trigger Group HK German MP5K 3 Position 0,1,F Navy Ambidextrous Trigger Group For MP5K, MP5KN or MP5K PDW. New HK German manufacture. This is the real deal. Only a few on hand and once they are all gone there...
    HKP-00405
    $2,499.95
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    $2,499.95
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  • New - H&K MP5 A3 Rear Stock Fork Section With Buttpad - HKP-01044
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    HK MP5 A3 Buttstock Fork Section with Buttpad

    H&K Heckler & Koch

    $429.95
    H&K MP5 A3 Stock Fork Section With Buttpad A common repair item as the buttpad can crack or break off with time or hard use. A hard-to-find item, available here at HK Parts. For use with new style A3 German stocks, NOT the older style stocks...
    HKP-01044
    $429.95
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    $429.95
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  • On Sale
    New - Ergo Harris Bipod Mount - KeyMod Handguard - HKP-17874
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    Harris Bipod Mount - KeyMod Handguard

    Ergo

    Now: $9.95
    Was: $38.95
    Ergo Harris Bipod Mount - KeyMod Handguard   Features: KeyMod Bipod Mount Black anodized 6061-T6 Alum. Compatible With: Harris-style bipods
    HKP-17874
    Now: $9.95
    Was: $38.95
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    Now: $9.95
    Was: $38.95
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  • On Sale
    New - Franklin Armory CZ Scorpion - BFSIII - Binary Trigger - Curved - HKP-18881 CZ Scorpion Binary Trigger - Curved - BFSIII
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    CZ Scorpion Binary Trigger - Curved - BFSIII

    FA Franklin Armory

    Now: $449.99
    Was: $495.95
    Franklin Armory CZ Scorpion - BFSIII - Binary Trigger The BFSIII for CZ Scorpion is a 3-Position Trigger. In position 3 it will fire 1 round on Pull and 1 round on Release. This makes it the fastest semi-automatic trigger on the market. The BFSIII is...
    HKP-18881
    Now: $449.99
    Was: $495.95
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    Now: $449.99
    Was: $495.95
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  • New - HKP ACE Adapter for HK MP5, 93, 33 - HKP-18504 HK MP5, HK33, HK93 Stock or Brace Adapter - ACE Style
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    HK MP5, HK33, HK93 Stock or Brace Adapter - ACE Style

    HKP HK Parts

    $99.95
    ACE Adapter for HK MP5 and HK 93 Each ACE adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct "H" buffers to protect your expensive firearm. This is the finest ACE adapter available period...
    HKP-18504
    $99.95
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    $99.95
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  • HK G36 2 Position Lower Housing - FDE HK G36 2 Position Lower Housing - FDE
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    HK G36 2 Position Lower Housing - FDE

    HKP HK Parts

    $154.95
    HK G36 (5.56/.223) 2 Position (0,1 Pictogram) Lower Housing This lower housing is available without internals, a unique offering as G36 lowers previously only came as complete trigger groups with both grip and internals. Ideal for SL8 to G36 conversions,...
    HKP-22510
    $154.95
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    $154.95
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