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 FBI Trigger Group (0,1) - SEMI - Clipped & Pinned - HKP-00187

    HK MP5 Trigger Group - FBI 0,1 Semi - Clipped and Pinned - .40 S&W / 10mm

    H&K Heckler & Koch

    $687.95
    H&K MP5 40/10 FBI Trigger Group (0,1) - SEMI - Clipped & Pinned As with all the ambidextrous trigger groups we offer, they are 100% factory German HK.
    HKP-00187
    $687.95
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    New - H&K MP5 40/10 Thread Protector Cap - Threaded 14x.75 - HKP-00422 HK MP5 Thread Protector Cap - .40 S&W / 10mm - 14x.75

    HK MP5 Thread Protector Cap - .40 S&W / 10mm - 14x.75

    H&K Heckler & Koch

    $0.00
    H&K MP5 40/10 Thread Protector Cap - Threaded 14x.75 HK German Factory Thread Protector For All MP5 40/10 Factory HK Barrels. The Thread Pitch Is Metric 14x75
    HKP-00422
    $0.00
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    New - H&K MP5 40/10 Complete Bolt Head - HKP-00451 HK MP5 Bolt Head, Complete - .40 S&W / 10mm

    HK MP5 Bolt Head, Complete - .40 S&W / 10mm

    H&K Heckler & Koch

    $0.00
    New HK German factory bolt head assembled and complete. No longer made and out of production get them while you still can. We have the last units available that HK has in stock. Brand new old stock German MP5 40, MP5 10mm bolt head complete. 100% German...
    HKP-00451
    $0.00
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    New - H&K MP5K 9mm Trigger Group (0,1,3) - HKP-02016 HK MP5K Trigger Group - 0,1,3 - 9mm

    HK MP5K Trigger Group - 0,1,3 - 9mm

    H&K Heckler & Koch

    $0.00
    HK MP5K (0,1,3) Trigger Group
    HKP-02016
    $0.00
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    New - HKP MP5K/SP89/SP5K Shoulder Harness - Right Handed - HKP-18021 HK MP5K, SP89, SP5K Shoulder Harness - Right Hand

    HK MP5K, SP89, SP5K Shoulder Harness - Right Hand

    HKP HK Parts

    $179.95
    MP5K, SP5K, SP89 Shoulder Harness - Right Handed New MP5K, SP5K or SP89 shoulder rig right handed for MP5K, SP5K & SP89 style weapon systems. Also fits clones & other HK MP5 style weapon systems with 2 spare magazine pouches that are integrated...
    HKP-18021
    $179.95
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    New - HKP MP5K/SP89/SP5K Shoulder Harness - Left Handed - HKP-01994 HK MP5K, SP89, SP5K Shoulder Harness - Left Hand

    HK MP5K, SP89, SP5K Shoulder Harness - Left Hand

    HKP HK Parts

    $179.95
    HK MP5K, SP89, SP5K Shoulder Harness - Left Handed New MP5K, SP5K or SP89 shoulder rig left handed for MP5K, SP5K & SP89 style weapon systems. Also fits clones & other HK MP5 style weapon systems with 2 spare magazine pouches that are integrated...
    HKP-01994
    $179.95
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    New - HKP MP5K/SP89 9mm Trigger Group 4 Position Housing 0,1- Safe, Semi Only - HKP-17239 HK MP5K, SP89 Trigger Group - 9mm - 4 Position - Housing 0,1

    HK MP5K, SP89 Trigger Group - 9mm - 4 Position - Housing 0,1

    HKP HK Parts

    $0.00
    MP5K, SP89 Trigger Group 4 Position Housing 0,1- Safe, Semi Only Finally, a lower cost alternative to the spendy & hard to find all German HK FBI or 0,1 ambidextrous trigger group in a 4 position factory German HK housing. Now for the first time, we...
    HKP-17239
    $0.00
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    New - HKP MP5K/SP89 9mm Trigger Group 3 Position Navy Housing 0,1- Safe, Semi Only - HKP-17240 HK MP5K, SP89 Trigger Group - 9mm - 3 Position - Navy Housing 0,1

    HK MP5K, SP89 Trigger Group - 9mm - 3 Position - Navy Housing 0,1

    HKP HK Parts

    $0.00
    HKP/H&K MP5K/SP89 9mm Safe & Semi Only Navy Style Trigger Group - Clipped & Pinned Finally, a lower-cost alternative to the expensive and hard-to-find all-German HK FBI or 0,1 ambidextrous trigger group, now available in a 3-position Navy...
    HKP-17240
    $0.00
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    New - MFI MP5K 9mm Barrel Extension/Faux Suppressor - 3-lug - HKP-18007 HK MP5K Barrel Extension and Faux Suppressor - 9mm - 3 lug

    HK MP5K Barrel Extension and Faux Suppressor - 9mm - 3 lug

    MFI

    $179.95
    MFI MP5K 9mm Barrel Extension/Faux Suppressor - 3-lug Each faux suppressor is designed to attach to the 3 lug MP5K 3 lugged barrel and can be permanently attached (blind pinned) in place to get the overall length of 16.25"overall. Perfect for that rifle...
    HKP-18007
    $179.95
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    New - H&K MP5K & SP89 Unmarked Ambidextrous Grip Frame Trigger Housing - HKP-01448 HK MP5K, SP89 Trigger Housing or Grip Frame - Ambi - Unmarked

    HK MP5K, SP89 Trigger Housing or Grip Frame - Ambi - Unmarked

    H&K Heckler & Koch

    $0.00
    H&K MP5K & SP89 Unmarked Ambidextrous Grip Frame Trigger Housing A genuine Heckler and Koch grip housing. Add your own customized markings to this trigger housing.This housing is made for ambidextrous trigger configurations. Trigger Pack...
    HKP-01448
    $0.00
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    New - H&K SP5K 9mm SEF Contoured Trigger Housing - Clipped & Pinned - HKP-17944 HK SP5K 9mm SEF Contoured Trigger Housing - Clipped & Pinned

    HK SP5K 9mm SEF Contoured Trigger Housing - Clipped & Pinned

    H&K Heckler & Koch

    $0.00
    H&K SP5K 9mm SEF Contoured Trigger Housing - Clipped & Pinned Designed specifically for the HK SP5K, this SEF style trigger housing features contoured finger grooves and is clipped and pinned for a perfect fit. Please ensure you are using an SEF...
    HKP-17944
    $0.00
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    New - H&K MP5K/SP89/SP5K 9mm Factory Hard Case - HKP-18185 HK MP5K/SP89/SP5K 9mm Factory Hard Case

    HK MP5K/SP89/SP5K 9mm Factory Hard Case

    H&K Heckler & Koch

    $0.00
    HK SP5K, SP89, MP5K Tactical Hard Case Factory HK OEM Hard case that comes standard with the HK SP5K. Each factory HK case comes with the HK Logo Proudly displayed on the front of the case. Brand new factory sealed and unused. Comes as pictured with the...
    HKP-18185
    $0.00
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