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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  • On Sale
    New - HKP MP5/K 40/10 Locking Piece - Extra Low Impulse - Gunsmith Special - BLEMISHED - HKP-18273-B HK MP5, MP5K Locking Piece - 100 Degree - Extra Low Impulse - .40 S&W, 10mm - Gunsmith Special - BLEMISHED
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    HK MP5, MP5K Locking Piece - 100 Degree - Extra Low Impulse - .40 S&W, 10mm - Gunsmith Special - BLEMISHED

    HKP HK Parts

    Now: $9.95
    Was: $49.95
    HKP MP5/K 40/10 Locking Piece - Extra Low Impulse - Gunsmith Special - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Please Note: Will require work...
    HKP-18273-B
    Now: $9.95
    Was: $49.95
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  • New - MI Side Folder with Lightweight Stock - HKP-20065 MI Side Folder with Lightweight Stock
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    MI Side Folder with Lightweight Stock

    MI Midwest Industries

    $180.95
    MI Side Folder with Light Weight Stock Features: Made in the USA Heavy-duty side-folding mechanism constructed from 4140 steel Full-length locking lug for maximum strength Solid positive lock up in both positions Steel clamp with large surface...
    HKP-20065
    $180.95
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    $180.95
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  • New - MP5 to MP5K Housing Conversion Service - HKP-20473 HK MP5 to MP5K Housing Conversion Service
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    HK MP5 to MP5K Housing Conversion Service

    USA

    $149.95
    MP5 to MP5K Housing Conversion Service At HK Parts we are now offering our own HK trigger housing conversion service. No one does a better job with quicker turn around then we do. This conversion is the best option for those that want to install hard to...
    HKP-20473
    $149.95
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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 - Magpul UCS - Universal Carbine Stock - HKP-22171-M UCS Universal Carbine Stock - M1913 rail
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    UCS Universal Carbine Stock - M1913 rail

    Magpul

    $209.95
    Magpul UCS Universal Carbine Stock The Magpul UCS (Universal Carbine Stock) is designed to be the ideal lightweight supplement to the vast array of firearms utilizing a vertical M1913 rail on the rear of the receiver for stock fitment. To accommodate the...
    HKP-22171-M
    $209.95
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    $209.95
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  • New - Holosun HK VP9/MP5 Reflex Sight HE-507K - Green - HKP-21677 HK MP5, VP9 Reflex Sight HE-507K - Green
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    HK MP5, VP9 Reflex Sight HE-507K - Green

    Holosun

    $354.95
    Holosun HK VP9 SCS-MOS Reflex Sight The HE507K-GR X2 is an open reflex optical sight designed for subcompact pistol applications. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Additional features include...
    HKP-21677
    $354.95
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  • New - HKP 9mm SEF Semi Trigger Pack - ENHANCED 5-6 LBS Trigger Pull - HKP-20312 HK MP5, MP5K, SP89, HK94 Trigger Pack - SEF Semi - 9mm - Semi-Auto - Enhanced 5 to 6 lb Trigger Pull
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    HK MP5, MP5K, SP89, HK94 Trigger Pack - SEF Semi - 9mm - Semi-Auto - Enhanced 5 to 6 lb Trigger Pull

    HKP HK Parts

    $439.95
    HKP 9mm SEF Semi Trigger Pack - ENHANCED 5-6 LBS Trigger Pull These trigger packs start as a F/A pack and gets professionally converted to the BATFE specs so you can rest assured the trigger pack is done correctly and to spec. These refinished trigger...
    HKP-20312
    $439.95
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    $439.95
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  • New - HK MP5K Side Reinforcement Tabs - HKP-20168 HK MP5K Side Reinforcement Tabs
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    HK MP5K Side Reinforcement Tabs

    USA

    $14.95
    HK MP5K Side Reinforcement Tabs
    HKP-20168
    $14.95
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    $14.95
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  • New - PTR HK MP5K 9mm 2 Positions (S,F Pictogram) Grip Frame Housing - Clipped & Pinned - HKP-16443 HK MP5K Grip Frame Housing - 2 Positions S,F Pictogram - Clipped and Pinned - 9mm
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    HK MP5K Grip Frame Housing - 2 Positions S,F Pictogram - Clipped and Pinned - 9mm

    PTR

    $159.95
    PTR HK MP5K 9mm 2 Positions (S,F Pictogram) Grip Frame Housing - Clipped and Pinned This HK aftermarket trigger housing will accept all SEF style trigger packs. This is made by PTR 91 to exact HK specs. This housing comes clipped and ready for a...
    HKP-16443
    $159.95
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    $159.95
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  • On Sale
    New - Super Slim Picatinny Riser Mount - 4 Slots - BLEMISHED - HKP-99229-M Picatinny Riser Mount - Super Slim - 4 Slots - BLEMISHED
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    Picatinny Riser Mount - Super Slim - 4 Slots - BLEMISHED

    Other

    Now: $26.21
    Was: $49.95
    Super Slim Picatinny Riser Mount - 4 Slots - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The slim Picatinny riser mount is offered in two clamp...
    HKP-99229-M
    Now: $26.21
    Was: $49.95
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    Now: $26.21
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  • New - B&T Unigrip Fixed With Storage Compartment - FDE - HKP-18042
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    B&T Unigrip Fixed With Storage Compartment - FDE

    B&T Brugger & Thomet

    $69.95
    B&T Vertical Grip - Fixed Style With Storage Compartment - TAN Swiss made B&T vertical for-end grip for picatinny. Made of tan polymer and includes a water tight storage compartment in the bottom of the grip. Will fit all mil-spec picatinny...
    HKP-18042
    $69.95
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    $69.95
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  • New - HK MP5, HK94 & SP5K Rear Sight Drum and Base - HKP-00073 HK MP5, HK94, SP5K Rear Sight Drum and Base
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    HK MP5, HK94, SP5K Rear Sight Drum and Base

    H&K Heckler & Koch

    $109.95
    Heckler and Koch Rear Sight Drum and Base for HK MP5, HK94, and HK SP5K This is an HK German part that's a great upgrade for the SP5, SP5K, and SP89 or MP5K models. We highly suggest adding the following items to complete the rear sight set that's not...
    HKP-00073
    $109.95
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    $109.95
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