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 HK MR556/MR762/416 Forward Assist Pin - HKP-02662 HK416, MR556, MR762 Forward Assist Pin
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    HK416, MR556, MR762 Forward Assist Pin

    H&K Heckler & Koch

    $4.95
    Heckler and Koch's Forward Assist Pin for HK416, HK MR556, and HK MR762 Compatible With: HK416, MR556 HK MR762
    HKP-02662
    $4.95
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    Qty in Cart: 0
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    $4.95
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  • New - H&K 93/53/33 (5.56/.223) Trigger Group - SEF Navy Style - Full Auto - Push Pin - HKP-18189 HK33, HK53, HK93 Trigger Group - SEF Navy Style - Full Auto - Push Pin
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    HK33, HK53, HK93 Trigger Group - SEF Navy Style - Full Auto - Push Pin

    H&K Heckler & Koch

    $549.95
    HK German HK93, 33, 33K, 53 SEF Navy Style F/A Trigger Group Complete - Used ON SALE FOR A SPECIAL PROMOTION WHILE SUPPLIES LAST!!! Each trigger group is comprised of genuine Heckler & Koch products Includes: German Full Auto trigger pack with all...
    HKP-18189
    $549.95
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    $549.95
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  • Used - H&K MP5 Factory Ambidextrous Sling - Black - HKP-00350 HK MP5, G36, UMP Sling - Factory - Ambidextrous - Black
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    HK MP5, G36, UMP Sling - Factory - Ambidextrous - Black

    H&K Heckler & Koch

    $64.95
    Heckler and Koch Ambidextrous 25mm Wide Sling for HK MP5, G36, UMP - Black Ambidextrous 25mm wide black sling designed for HK platforms equipped with dual sling clip attachment points. Allows left or right side mounting similar to the factory HK green...
    HKP-00350
    $64.95
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    $64.95
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  • New - HKP MP5 & HK94 Vertical K Grip Adapter - HKP-00175 HK MP5, HK94 Grip Adapter - K Style
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    HK MP5, HK94 Grip Adapter - K Style

    HKP HK Parts

    $49.95
    HK Vertical K Grip Adapter For HK MP5 & HK94 (Adapter Only) This is the adapter needed to add an MP5K K grip to your HK94, MP5, or clone.
    HKP-00175
    $49.95
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    $49.95
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  • Used - Friction Sear-USED For SEF, Navy Trigger Packs - HKP-16197 HK MP5, HK33, HK53, HK93, HK91, G3 Catch with Roller for SEF, Navy Trigger Packs - USED
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    HK MP5, HK33, HK53, HK93, HK91, G3 Catch with Roller for SEF, Navy Trigger Packs - USED

    H&K Heckler & Koch

    $4.49
    Friction Sear-USED For SEF, Navy Trigger Packs hk335393, 91, G3,  Used in excellent condition, HK German Friction Sear for SEF & Navy trigger packs. This item is also referred to as the catch with roller but more commonly called a sear.
    HKP-16197
    $4.49
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    $4.49
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  • Used - H&K MP5K/SP5K SEF Universal Housings - Clipped & Pinned - USED - HKP-21352 HK MP5K/SP5K SEF Universal Housings - Clipped & Pinned - USED
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    HK MP5K/SP5K SEF Universal Housings - Clipped & Pinned - USED

    H&K Heckler & Koch

    $99.95
    H&K MP5K/SP5K SEF Universal Housings - Clipped & Pinned - USED Finally a solution everyone was looking for. A one size fits all approach for the MP5K and SP5K style semi-auto shelf. You can easily swap the lower trigger group assembly and install...
    HKP-21352
    $99.95
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    $99.95
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  • On Sale
    New - JMAC HK MP5 9mm Muzzle Device - Compatible With KeyMo Suppressors - Threaded 1/2x28 - HKP-21256 JMAC HK MP5 9mm Muzzle Device - Compatible With KeyMo Suppressors - Threaded 1/2x28
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    JMAC HK MP5 9mm Muzzle Device - Compatible With KeyMo Suppressors - Threaded 1/2x28

    JMAC Customs

    Now: $77.95
    Was: $99.95
    JMAC HK MP5 9mm Muzzle Device - Compatible With KeyMo Suppressors - Threaded 1/2x28 The360HDis the latest evolution in JMac's Custom's™Recoil Reduction Device™ (RRD)family of muzzle brakes, designed to meet the needs of serious shooters and...
    HKP-21256
    Now: $77.95
    Was: $99.95
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    Now: $77.95
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  • New - H&K HK VP9/VP9SK, VP40 Trigger Stop Bolt - HKP-16784
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    HK VP9, VP9SK, VP40 Trigger Stop Bolt

    H&K Heckler & Koch

    $14.95
    H&K HK VP9/VP9SK, VP40 Trigger Stop Bolt Stop Bolt for Trigger VP9, VP40. Compatible With: HK VP9 HK VP9SK HK VP40 HK VP9A1 F HK VP9A1 K
    HKP-16784
    $14.95
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    $14.95
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  • New - H&K HK G36/SL8/MP7 Gas Block Pin - HKP-16727
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    HK MP7, G36, SL8 Gas Block Pin

    H&K Heckler & Koch

    $8.95
    H&K HK G36/SL8/MP7 Gas Block Pin The G36/SL8/MP7 gas block pin is the largest out of HK's line up (UMP/USC, 415/MR556, 417/MR762).
    HKP-16727
    $8.95
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    $8.95
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  • On Sale
    New - HKP HK 91/G3/MP5 Ambidextrous Selector Lever - Right Side - Low Profile - HKP-17898 HK91, G3, MP5 Ambidextrous Selector Lever - Right Side - Low Profile
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    HK91, G3, MP5 Ambidextrous Selector Lever - Right Side - Low Profile

    HKP HK Parts

    Now: $22.95
    Was: $39.95
    Low Profile, No Contact - Ambidextrous Selector Lever - Right Side This is the right side selector of the ambidextrous trigger packs that is low profile and does not interfere with the hand when the selector lever is in the fire, burst and F/A...
    HKP-17898
    Now: $22.95
    Was: $39.95
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    Now: $22.95
    Was: $39.95
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  • New - H&K MP5 Magazine Release Set - HKP-02402 HK MP5 Magazine Release Set
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    HK MP5 Magazine Release Set

    H&K Heckler & Koch

    $184.95
    H&K Magazine Release Set This is the complete magazine release kit that includes both the paddle mag release and standard left-to-right mag release on your HK 9mm rifle or pistol build.  Compatible With: MP5, MP5K style 9mm models Set...
    HKP-02402
    $184.95
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    $184.95
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  • New - H&K Grip Screw - HKP-01725
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    HK MP5, SP89, HK91, HK93, HK94 Grip Screw

    H&K Heckler & Koch

    $8.95
    H&K Grip Screw New HK grip screw that is now out of production. Great for a spare. Compatible With: HK91 HK93 HK94 SP89
    HKP-01725
    $8.95
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    $8.95
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