MP5K / SP5K Series

MP5K / SP5K Series

Discover the most comprehensive selection of HK MP5K and SP5K parts at HKP. From bolt carrier groups and barrels to trigger packs and magazines, we provide all the HK parts you need to build, upgrade, or maintain your firearm. Whether you're enhancing your MP5K with 922r compliant parts or looking for the perfect SP5K flash hider, our top-quality components are designed for precision, reliability, and performance. Trust HKP for all your MP5K and SP5K parts and accessories.

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  • New - Botach Tactial Battle Steel HK Mount for Aimpoint, HoloSun, Sig Romeo 5 - HKP-19529 HK Mount for Aimpoint, HoloSun, Sig Romeo 5
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    HK Mount for Aimpoint, HoloSun, Sig Romeo 5

    Botach Tactical

    $59.95
    Battle Steel HK Mount for Aimpoint, HoloSun, & Sig Romeo 5 The lowest mounting solution for HK MP5/HK33/HK53 firearms for the Aimpoint T-1/T-2 mounting style optics. Delivers an absolute co-witness for all Aimpoint Micro, Sig Romeo 5, & HoloSun...
    $59.95
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  • New - UTG PRO HK MP5K Handguard - HKP-21151-M HK MP5K Handguard - 9mm - M-LOK
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    HK MP5K Handguard - 9mm - M-LOK

    UTG PRO

    $189.95 - $198.97
    UTG PRO HK MP5K Handguard - 9mm - M-Lok with Picatinny Receiver Extension   The new UTG PRO MP5K MLOK handguard with picatinny receiver extension is incredible. This thing is stunning! The machining, finish and fit are flawless. The assembly is...
    $189.95 - $198.97
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  • Out Of Stock
    New - UTG PRO HK MP5/MP5K Claw Mount - Extended Picatinny - HKP-21606 HK MP5, MP5K Optic Mount - Extended Claw - Picatinny

    HK MP5, MP5K Optic Mount - Extended Claw - Picatinny

    UTG PRO

    $64.95
    UTG HK MP5/MP5K Claw Mount - Extended Picatinny   UTG Pro Claw Mount for MP5 and MP5K pattern firearms featuring UTG's patented receiver locking interface. Each U.S. made mount  features an extended Picatinny rail, lightweight matte black...
    $64.95
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  • New - Blitzkrieg HK MP5 Chevron Front Sight Gen 2 - Orange - HKP-20454 Blitzkrieg HK MP5 Chevron Front Sight Gen 2 - Orange
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    Blitzkrieg 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...
    $56.99
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  • New - MFI HK G3, 91, 93, 33 PTR & MP5 Scope Mount - Windowed - HKP-02708 HK MP5, HK91, G3, HK33, HK93 Optic Mount - Windowed
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    HK MP5, HK91, G3, HK33, HK93 Optic Mount - Windowed

    MFI

    $124.95
    MFI HK G3, 91, 93, 33 PTR & MP5 Scope Mount - Windowed This model is the same as the best-selling low-profile mount, only with added windows for extra weight savings and a viewing window to see the serial numbers on the MP5/94 series of...
    $124.95
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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...
    $39.95
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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...
    $289.95
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  • New - HKP Rear Sight Oval Washer - HKP-00870
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    HK Rear Sight Oval Washer

    HKP HK Parts

    $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.
    $2.95
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  • New - H&K MP5 & MP5K Firing Pin Spring - HKP-00063
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    HK MP5, MP5K Spring - Firing Pin

    H&K Heckler & Koch

    $32.95
    H&K MP5 & MP5K Firing Pin Spring The latest firing pin spring features a stronger and more durable braided design, surpassing the standard non-braided spring in performance and longevity.  Compatible With: HKMP5 HK MP5K HK SP5 HK SP5K ...
    $32.95
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  • New - HKP MP5, MP5K, 94 & SP89 Firing Pin-Steel - HKP-02115
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    HK MP5, HK94, MP5K, SP89 Firing Pin - Steel

    HKP HK Parts

    $17.47
    MP5, MP5K, 94, & SP89 Firing Pin - Steel Each part is made using the factory HK material and specifications from original HK German blueprints. Compatible With: MP5, HK94 MP5K, SP89, SP5K MP5 40, 10mm, .357 Sig Zenith, POF, Omega, DT,...
    $17.47
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  • New - HKP Pistol Grip Parts Storage Holder - HKP-16468 HK Pistol Dual Battery Holder - Grip, Parts Storage
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    HK Pistol Dual Battery Holder - Grip, Parts Storage

    HKP HK Parts

    $29.95
    HKP Pistol Grip Parts Storage Holder A must have item for storage of much needed 123 batteries for your gear such as optics, lasers, illuminators, etc. This HK grip plug will fit all Navy Style or Ambidextrous housings that have the holding tabs in the...
    $29.95
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  • 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

    $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...
    $14.95
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