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 - HKP MP5K SEF 5-Position Telscoping Stock - PDWC - HKP-17825 HK MP5K Telescopic Stock - SEF - 5 Position - PDWC
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    HK MP5K Telescopic Stock - SEF - 5 Position - PDWC

    HKP HK Parts

    $499.95
    HKP MP5K 9mm 5 Position Telscopic Stock - PDWC The stock rails collapse along the top ridge of the grip frame for the lowest profile stock ever produced for the MP5 family of firearms. Made in the USA. Includes: 5-position stainless steel nitrided...
    HKP-17825
    $499.95
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  • New - Magpul M-LOK QD Sling Mount - HKP-17268
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    M-LOK QD Sling Mount

    Magpul

    $27.95
    Magpul M-LOK QD Sling Mount The M-LOK Quick Detach Sling Mount provides a forward attachment point for the Magpul MS4 Sling and other push-button QD slings. Machined from Mil-Spec anodized aluminum, the low-profile M-LOK QD Sling Mount features beveled...
    HKP-17268
    $27.95
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  • Out Of Stock
    New - Zenith 30 Round HK MP5 Subsonic Labeled Magazine - HKP-20829 HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Subsonic Pew Pew

    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Subsonic Pew Pew

    Zenith

    $43.95
    Zenith 30 Round HK MP5 Subsonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Features: Durable electro-plated black finish for exceptional corrosion resistance All steel...
    HKP-20829
    $43.95
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  • New - Strike Industries M-LOK Bikini Hand Stop - HKP-20057 MLOK Handstop Set - Bikini BHS
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    MLOK Handstop Set - Bikini BHS

    Strike Industries

    $13.95
    Bikini Hand Stop (2-pack) Strike Industries The Strike Industries Bikini Hand Stop (BHS) gives the shooter increased ergonomics and control of the weapon. The hand stop is made from durable and lightweight polymer compatible with M-LOK rails. The BHS is...
    HKP-20057
    $13.95
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  • New - MI Pistol Brace Compatible Side Folder - HKP-19959 Side Folding Bar for Tailhook Brace
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    Side Folding Bar for Tailhook Brace

    MI Midwest Industries

    $129.95
    MI Pistol Brace Compatible Side Folder   For use with Gear Head Works Tailhook Pistol Brace   Features: Made in the USA Heavy duty side folding mechanism constructed from 4140 steel Full length locking lug for maximum strength. Solid positive...
    HKP-19959
    $129.95
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  • On Sale
    New - HKP 3-Lug Adapter - Threaded 1/2x32 - HKP-00107
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    HK MP5, SP5 3 Lug Adapter - Threaded 1/2x32

    HKP HK Parts

    Now: $29.95
    Was: $49.95
    HKP 3-Lug Adapter - Threaded 1/2x32 The HK 3-Lug Adapter, internally threaded with 1/2x32 threads, can easily attach to any existing 1/2x32 threaded parts. This is the finest machined adapter on the market, made in the USA to exact HK German 3-lug...
    HKP-00107
    Now: $29.95
    Was: $49.95
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  • New - H&K Standard 4 Position Burst Left Side Selector Lever - HKP-00123
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    HK MP5, MP5K Selector Lever, Left Side - Navy Trigger Groups

    H&K Heckler & Koch

    $399.95
    H&K Standard 4 Position Burst Left Side Selector Lever Compatible with any of the 0, 1, 3, F or 0, 1, 2, F trigger packs. Brand new HK German part. No longer available so get them while you can. 
    HKP-00123
    $399.95
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  • New - H&K MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin - HKP-17143 HK MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin
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    HK MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin

    H&K Heckler & Koch

    $369.95
    H&K MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin - 9mm This is a factory German push pin style housing. HK marked and new latest factory fresh production. Specifications: 3 Position Pictogram Markings: 0,1,F Navy...
    HKP-17143
    $369.95
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  • New - H&K HK MR556/416 A5 Ambi Selector Lever Set Complete - Black - HKP-19375 HK416A5, MR556 Ambi Selector Lever Set Complete
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    HK416A5, MR556 Ambi Selector Lever Set Complete

    H&K Heckler & Koch

    $179.95
    H&K HK MR556/416 A5 Ambi Selector Lever Set Complete New HK German manufacture. Complete kit to upgrade the selector lever set on the MR556 to the newer HK 416A5 semi style of levers. A drop in upgrade for the MR556 & CR556. Includes: HK 416 A5...
    HKP-19375
    $179.95
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  • New - Surefire 12-Pack 123A Batteries - HKP-02711
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    12-Pack 123A Batteries

    Surefire

    $29.95
    Surefire 12-Pack 123A Batteries Made in the USA and the "gold standard" in battery performance. These are the best performance, longest lasting 123 batteries available. The price is for a box of 12 new batteries. Ideal for use with lasers, lights,...
    HKP-02711
    $29.95
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  • New - B&T Sling Attachment Loop - Universal - HKP-21734 B&T Sling Attachment Loop - Universal
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    B&T Sling Attachment Loop - Universal

    B&T Brugger & Thomet

    $7.95
    B&T Sling Attachment Loop Swiss-made B&T sling loop for attaching slings to sling eyelets on firearms.  B&T made but compatible with any sling with a clip and firearm with a sling loop or other mounting provision.
    HKP-21734
    $7.95
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  • New - Bore Boss Pull-Through Bore Cleaner - .357/9mm/.38 - HKP-19400 Bore Boss Pull-Through Bore Cleaner - 9mm / .357 / .38
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    Bore Boss Pull-Through Bore Cleaner - 9mm / .357 / .38

    Real Avid

    $12.95
    Real Avid Bore Boss Pull-Through Bore Cleaner - .357/9mm/.38 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece...
    HKP-19400
    $12.95
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    $12.95
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