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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  • HK MP5K 9mm SEF Navy Style Trigger Housing - Push Pin - USED HK MP5K 9mm SEF Navy Style Trigger Housing - Push Pin - USED
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    HK MP5K 9mm SEF Navy Style Trigger Housing - Push Pin - USED

    H&K Heckler & Koch

    $74.95
    H&K MP5K 9mm SEF Navy Style Trigger Housing - Push Pin - USED HK German factory date coded SEF grip frame that has been cut to MP5K factory German specs. This style of housing is for push pin firearms that do not require a clipped and pinned housing...
    HKP-19997-USED
    $74.95
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  • New - UTG PRO HK MP5/MP5K Claw Mount - Extended Picatinny - HKP-21606 HK MP5, MP5K Optic Mount - Extended Claw - Picatinny
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    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...
    HKP-21606
    $64.95
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  • Used - H&K 90 Series Pinned Hammer - HKP-18305 HK MP5, HK90 Series Pinned Hammer - Full Auto
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    HK MP5, HK90 Series Pinned Hammer - Full Auto

    H&K Heckler & Koch

    $29.95
    Hammer, Full Auto HK 90 Series Trigger Packs - German HK - Used German HK Hammer- used, surplus in VG-EXC shape and in perfect working order. With the proper hole on the hammer to pin the strut in place. This hammer is the hammer that is most commonly...
    HKP-18305
    $29.95
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  • New - MI HK MP5K/SP5K M-LOK Handguard - Black - HKP-18438 HK MP5K, SP5K Handguard - M-LOK
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    HK MP5K, SP5K Handguard - M-LOK

    MI Midwest Industries

    $114.95
    M-LOK Handgaurd for MP5K, SP5K, SP89 Firearms Features: Made in the USA, 922r Compliant Professional grade one-piece design Simple installation, includes all tools Mil-spec top rail Extremely lightweight design weighs only 2.6 oz with hardware Slim 1.6...
    HKP-18438
    $114.95
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  • New - H&K 10 Round HK MP5, MP5K - California Compliant Magazine - HKP-20670 HK 10 Round HK MP5, MP5K - California Compliant Magazine
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    HK 10 Round HK MP5, MP5K - California Compliant Magazine

    H&K Heckler & Koch

    $88.95
    California Complaint Magazine 10-30 - MP5, MP5K  - German - New This California compliant magazine has a 10 round block pre-installed which converts a factory 30 round magazine into a 10 round magazine. This is the best option to stay legal in...
    HKP-20670
    $88.95
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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...
    HKP-21151-M
    $189.95 - $198.97
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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...
    HKP-19529
    $59.95
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  • New - Blitzkrieg HK MP5 Chevron Front Sight Gen 2 - Orange - HKP-20454 HK MP5 Chevron Front Sight - Gen 2 - Orange
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    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
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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...
    HKP-02708
    $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...
    HKP-00119
    $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...
    HKP-21356
    $289.95
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  • New - H&K MP5 & MP5K Firing Pin Spring - HKP-00063
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    HK MP5, MP5K Firing Pin Spring

    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 ...
    HKP-00063
    $32.95
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