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 SEF Long Axle Selector Lever - Polymer Housing - HKP-00119 HK Lever - SEF - Long Axle Selector - Polymer Housing
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    HK Lever - SEF - Long Axle Selector - Polymer Housing

    H&K Heckler & Koch

    $39.95
    H&K SEF Long Axle Selector Lever - Polymer Housing If you have a polymer SEF housing such as the contoured type with finger grooves or the SEF navy style grip frames as well as the 0,1 polymer housings this is the correct selector lever...
    HKP-00119
    $39.95
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  • On Sale
    New - HKP 90 Series Flat Trigger - Enhanced - HKP-18364 HK MP5, G3, HK53 Flat Trigger - Enhanced
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    HK MP5, G3, HK53 Flat Trigger - Enhanced

    HKP HK Parts

    Now: $39.95
    Was: $49.95
    HKP 90 Series Flat Trigger - Enhanced With the utmost attention to detail in the design and manufacture of the HK Parts flat 90 series trigger. Each enhanced flat trigger will fit all 0,1 & SEF & Navy style trigger packs. Each trigger counts as...
    HKP-18364
    Now: $39.95
    Was: $49.95
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    Now: $39.95
    Was: $49.95
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  • Used - H&K MP5 9mm SEF Full Auto Trigger Pack Complete - Used - HKP-21356 HK MP5 9mm SEF Full Auto Trigger Pack - Complete - Used
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    HK MP5 9mm SEF Full Auto Trigger Pack - Complete - Used

    H&K Heckler & Koch

    $289.95
    H&K MP5/K 9mm SEF Full Auto Complete Trigger Pack - USED Each factory full auto trigger pack includes a 9mm 3rd generation German ejector lever installed. We do NOT use Pakistani, MKE, or US-made ejector levers in our trigger packs. Each used surplus...
    HKP-21356
    $289.95
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    $289.95
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  • On Sale
    New - GG&G HK USP Pistol Flashlight Adapter - Black - HKP-01107 HK USP Flashlight Mount - Adapter
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    HK USP Flashlight Mount - Adapter

    GG&G

    Now: $62.95
    Was: $69.95
    GG&G HK USP Pistol Flashlight Adapter - Black   With a large number of flashlights and lasers that fit on a Picatinny or MIL-STD-1913 rail, GG&G has designed and manufactured an HK USP full-size flashlight mounting rail adapter meeting the...
    HKP-01107
    Now: $62.95
    Was: $69.95
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    Now: $62.95
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  • Out Of Stock
    New - H&K 20 Round HK MR762/417 7.62/.308 Magazine - RAL 8000 - HKP-18608 HK417, MR762 Magazine - 20 Round - RAL8000

    HK417, MR762 Magazine - 20 Round - RAL8000

    H&K Heckler & Koch

    $66.95
    Heckler and Koch 20 Round HK MR762 and HK417 7.62/.308 Magazine - RAL 8000 Genuine HK 20 round magazine. Factory fresh & hard to find. This is the highest magazine capacity available for the HK MR762 and HK417 family of firearms. Compatible...
    HKP-18608
    $66.95
    Out Of Stock
    Qty in Cart: 0
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    $66.95
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  • On Sale
    New - HKP Semi Shelf Weldment - Metal Grip Housing - HKP-16657 HK Semi Shelf Weldment - Metal Grip Housing
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    HK Semi Shelf Weldment - Metal Grip Housing

    HKP HK Parts

    Now: $11.95
    Was: $14.95
    HKP Semi Shelf Weldment Metal Grip Housing For Semi-Auto Trigger Packs This HK German specification metal trigger frame weldment is designed for converting SEF style housings from full auto to semi-auto. This weldable block or shelf is essential for...
    HKP-16657
    Now: $11.95
    Was: $14.95
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    Now: $11.95
    Was: $14.95
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  • On Sale
    New - HKP Rear Sight Oval Washer - HKP-00870
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    HK Rear Sight Oval Washer

    HKP HK Parts

    Now: $1.95
    Was: $2.95
    HKP Rear Sight Oval Washer HK German oval washer for the rear sight diopter style assemblies. This is the needed washer used in conjunction with the locking washer. Fits and works with all diopter-style rear sights.
    HKP-00870
    Now: $1.95
    Was: $2.95
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    Now: $1.95
    Was: $2.95
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  • New - H&K 91/G3 (7.62x51/.308) Extractor - HKP-00495 HK91, G3 Extractor
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    HK91, G3 Extractor

    H&K Heckler & Koch

    $13.95
    HK German HK G3, HK, 91 & PTR 91 .308 Extractor New HK German. The G3 is out of production and this small lot of new old stock extractors is available at the best price in the country. Fits all models of HK G3 style firearms and CETME's. Compatible...
    HKP-00495
    $13.95
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    $13.95
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  • On Sale
    New - HKP MP5SD 9mm Cocking Tube - HKP-15700 HK MP5SD 9mm Cocking Tube
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    HK MP5SD 9mm Cocking Tube

    HKP HK Parts

    Now: $79.95
    Was: $99.95
    MP5SD Cocking Tube - US Made HK German MP5SD spec cocking tube for use on MP5SD style builds or custom SD builds. These are the best MP5SD cocking tube ever offered. Each unit is made from the original factory HK prints & tooling to the perfect HK...
    HKP-15700
    Now: $79.95
    Was: $99.95
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    Now: $79.95
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  • Out Of Stock
    New - Blitzkrieg HK MP5 Chevron Front Sight Gen 2 - Orange - HKP-20454 HK MP5 Chevron Front Sight - Gen 2 - Orange

    HK MP5 Chevron Front Sight - Gen 2 - Orange

    Blitzkrieg Components

    $56.99
    Blitzkrieg HK MP5  Chevron Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight provides a fast, bold sight picture with a sharp aiming point, designed for enhanced visibility and precision. The bright orange chevron stripe offers...
    HKP-20454
    $56.99
    Out Of Stock
    Qty in Cart: 0
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    $56.99
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  • On Sale
    New - HKP HK MP5, 94, HK53, 51 M-LOK Handguard - HKP-17148-M HK MP5, HK94, HK53, HK51 Handguard - M-LOK
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    HK MP5, HK94, HK53, HK51 Handguard - M-LOK

    HKP HK Parts

    Now: $86.95
    Was: $108.95
    HK MP5, 94, HK53, 51 Low Profile Forearm M-LOK The M-LOK tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by roller lock & HK enthusiasts with your shooting...
    HKP-17148-M
    Now: $86.95
    Was: $108.95
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    Now: $86.95
    Was: $108.95
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  • On Sale
    New - HKP +2 HK VP9SK/P30SK Magazine Extension w/ Pinky Rest - HKP-21076-M HK VP9SK, P30SK Magazine Extension - Pinky Rest - +2
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    HK VP9SK, P30SK Magazine Extension - Pinky Rest - +2

    HKP HK Parts

    Now: $19.95
    Was: $24.95
    HKP +2 HK VP9SK/P30SK Magazine Extension w/ Pinky Rest The mag extension also provides a pinky rest that is super well-balanced and rock-solid. Made in the USA from billeted aluminum. The +2 mag extension not only provides a place to rest the pinky, but...
    HKP-21076-M
    Now: $19.95
    Was: $24.95
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    Now: $19.95
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