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 - Trijicon Bright & Tough - Night Sights - H&K SP89, Carbines, Rifles - HKP - HKP-20325 HK MP5, MP5K, G3 Night Sights
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    HK MP5, MP5K, G3 Night Sights

    XS Sights

    $159.95
    Trijicon Bright & Tough - Night Sights - H&K SP89, Carbines, Rifles Trijicon bright & tough night sights are three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. Housed in a metal...
    HKP-20325
    $159.95
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    $159.95
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  • New - Aimpoint Absolute Co-Witness T1 Mount - HKP-19334 Picatinny Optic Mount - Aimpoint T1 - Absolute Co-Witness
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    Picatinny Optic Mount - Aimpoint T1 - Absolute Co-Witness

    Aimpoint

    $14.95
    Aimpoint - T1 Mount Absolute Co-Witness Features a machined recoil lug for consistent, repeatable mounting.  Features:  6061 T6 aluminum Black anodized Machined recoil lug Compatible With: Aimpoint T1 / H1 Series optics Micro T-1 MIL-STD...
    HKP-19334
    $14.95
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    $14.95
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  • New - JMAC Customs TS-8 w/ 1913 Folding Mech - HKP-20145 Triangle Stock - TS-8 with 1913 Folding Mech
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    Triangle Stock - TS-8 with 1913 Folding Mech

    JMAC Customs

    $284.99
    JMAC Customs TS-8 w/ 1913 Folding Mech Triangle stock 8" with our 1913 folding mech (not assembled) 2x integrated QD sling socket 8" length Drilled and tapped for optional cheek risers (will be available in the future) Compatible with SIG folding...
    HKP-20145
    $284.99
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    $284.99
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  • New - H&K SP5K Spec Only 9mm 2 Position (0,1 Pictogram) FBI Style Grip Trigger Housing - HKP-18307 HK SP5K Spec Only 9mm 2 Position (0,1 Pictogram) FBI Style Grip Trigger Housing
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    HK SP5K Spec Only 9mm 2 Position (0,1 Pictogram) FBI Style Grip Trigger Housing

    H&K Heckler & Koch

    $194.95
    H&K SP5K Spec 9mm 2 Position (0,1 Pictogram) FBI Style Grip Trigger Housing Upgrade your HK SP5K with this authentic German FBI style grip housing, designed specifically for the SP5K model. Compatible with all HK German ambidextrous trigger packs and...
    HKP-18307
    $194.95
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    $194.95
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  • New - B&T HK MP5K 3-Position Folding Adjustable Stock - Black - HKP-18243 HK MP5K 3-Position Folding Adjustable Stock
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    HK MP5K 3-Position Folding Adjustable Stock

    B&T Brugger & Thomet

    $494.95
    B&T HK MP5K 3-Position Folding Adjustable Stock Swiss made B&T folding and length adjustable stock for the HK MP5K and compatible. This is a military grade stock as supplied by B&T to military and law enforcement units world-wide. B&T AG...
    HKP-18243
    $494.95
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    $494.95
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  • Out Of Stock
    New - H&K MP5K 9mm 3 Position (S,E,3F Pictogram) Burst Trigger Housing - Push Pin - RARE - HKP-02015 HK MP5K 9mm 3 Position (S,E,3F Pictogram) Burst Trigger Housing - Push Pin - RARE

    HK MP5K 9mm 3 Position (S,E,3F Pictogram) Burst Trigger Housing - Push Pin - RARE

    H&K Heckler & Koch

    $0.00
    H&K MP5K 9mm 3 Position (S,E,3F Pictogram) Burst Trigger Housing - Push Pin - RARE This rare HK MP5K SE3F marked ambidextrous push pin trigger features a 3 position pictogram (S,E,3F) Safe, Semi, and 3-Round Burst. With only a few available in the...
    HKP-02015
    $0.00
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  • New - H&K MP5 & MP5K Stop Pin For Recoil Rod - HKP-17421
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    HK MP5, MP5K Recoil Rod Stop Pin

    H&K Heckler & Koch

    $14.99
    HK German MP5 & MP5K Recoil Rod Stop Pin New HK German manufacture a great spare or replacement item to have on hand. Compatible With: MP5, 94, SP5 MP5K, SP89, SP5KClones or other custom builds
    HKP-17421
    $14.99
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    $14.99
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  • HK MP5K Apparel and Patch Collection - K Series Hats, Patches, and Shirts - V1 HK MP5K Apparel and Patch Collection - K Series Hats, Patches, and Shirts - V1
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    HK MP5K Apparel and Patch Collection - K Series Hats, Patches, and Shirts - V1

    HKP HK Parts

    $0.00
    HKP HK MP5K Apparel and Patch Collection - Version 1 Represent your platform with the HK Parts K Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...
    HKP-22454-M
    $0.00
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  • HK MP5, MP5K Optic Mount - 9mm - Raised - Picatinny HK MP5, MP5K Optic Mount - 9mm - Raised - Picatinny
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    HK MP5, MP5K Optic Mount - 9mm - Raised - Picatinny

    MI Midwest Industries

    $119.95
    Midwest Industries HK MP5, MP5K Tall Optic Mount - 1913 Picatinny Rail Tall, clamp-on optic mount for HK MP5 and MP5K pattern firearms, giving a higher, more upright sightline while still allowing use of the factory diopter sights. Ideal for mounting...
    HKP-22397
    $119.95
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    $119.95
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  • Used - H&K 90 Series F/A Trigger Box - SEF- USED - HKP-22156 HK90 Series Trigger Box - Full Auto SEF- USED
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    HK90 Series Trigger Box - Full Auto SEF- USED

    H&K Heckler & Koch

    $89.95
    H&K 90 Series F/A Trigger Box - SEF- USED UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine H&K full-auto trigger box for 90 series firearms. Controls fire selector function and houses fire control component. Fits all...
    HKP-22156
    $89.95
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    $89.95
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  • New - HKP HK MP5/K Thread Protector - Threaded 1/2x32 RH - HKP-21829 HK MP5, MP5K Thread Protector - 1/2x32 - RH
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    HK MP5, MP5K Thread Protector - 1/2x32 - RH

    HKP HK Parts

    $14.95
    HKP HK MP5/K Thread Protector - Threaded 1/2x32 RH This MP5/K thread protector is designed to safeguard your barrel threads from damage when a muzzle device is not in use. Made in the USA from high-quality steel, it offers durability and a precise fit...
    HKP-21829
    $14.95
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    $14.95
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  • On Sale
    New - SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter - Gray - HKP-20477 HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included - Gray
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    HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included - Gray

    SB Tactical

    Now: $269.95
    Was: $294.95
    SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter - Gray MP5K, SBA4  5-position adjustable brace features an integral ambidextrous QD sling socket for a quick install and removal sling attachment.This brace is the perfect addition for...
    HKP-20477
    Now: $269.95
    Was: $294.95
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    Now: $269.95
    Was: $294.95
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