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 - H&K MP5, MP5K Rear Sight Set Complete-Windage Knob - HKP-02532
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    HK MP5, MP5K Rear Sight Set Complete-Windage Knob

    H&K Heckler & Koch

    $129.95
    MP5 & HK94 Rear Sight Set Complete - With Windage Adjustment Knob Each rear sight unit comes with German HK parts, with the only exception being the hand-adjustable windage screw. Each set includes the entire rear sight assembly and hardware set for...
    HKP-02532
    $129.95
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  • Out Of Stock
    On Sale
    HK MP5K, AP5P OEM Picatinny Rail MKE HKP-22334 HK MP5K, AP5P OEM Picatinny Rail MKE HKP-22334

    HK MP5, MP5K, AP5-P Optic Mount - Picatinny

    MKE

    Now: $39.95
    Was: $49.95
    MKE HK MP5K, AP5P OEM Picatinny Optic Rail MKE Picatinny optic rail for the MP5K platform.  OEM part for the Century AP5-P and AP5-M.  This rail is the K specific length but is compatible with full size MP5 guns as well. Compatible With: HK...
    HKP-22334
    Now: $39.95
    Was: $49.95
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  • New - Franklin Armory HK MP5K-AR Binary Trigger Group - HKP-21337-M HK MP5K, SP5K-PDW, SP89 Binary Trigger Group - Ambi - BFSIII - 9mm
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    HK MP5K, SP5K-PDW, SP89 Binary Trigger Group - Ambi - BFSIII - 9mm

    FA Franklin Armory

    $849.95
    Franklin Armory HK MP5K-AR Binary Trigger Group Introducing our new MP5K-AR Navy ambidextrous lower housing, paired with a Franklin Armory Binary Trigger pack and a Magpul MOE grip for a complete MP5K-AR Binary Trigger group. This drop-in unit fits all...
    HKP-21337-M
    $849.95
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  • New - JMAC Universal Picatinny 9" Arm Bar with Brace/Stock Adapter - HKP-21248 Arm Bar and Stock  or Brace Adapter - Picatinny 9"
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    Arm Bar and Stock or Brace Adapter - Picatinny 9"

    JMAC Customs

    $272.85
    JMAC Universal Picatinny 9" Arm Bar with Brace/Stock Adapter (A)rm(B)ar(9)inch(R)ise + AB-BA Brace Adapter + our 1913 Folding Mech (not assembled) Features: Modular Design - Brace/Stock with many mounting options Integrated QD Sling Socket 9"...
    HKP-21248
    $272.85
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  • New - Zenith 30 Round HK MP5 Monkey Supersonic Labeled Magazine - HKP-20915 HK MP5 Magazine - Monkey Supersonic Labeled - 30 Round
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    HK MP5 Magazine - Monkey Supersonic Labeled - 30 Round

    Zenith

    $43.95
    Zenith 30 Round HK MP5 Monkey Supersonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Feautres: Durable electro-plated black finish for exceptional corrosion resistance All...
    HKP-20915
    $43.95
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  • New - H&K Selector Catch Lever for HK Ambidextrous Trigger Packs - HKP-01636
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    HK Selector Catch Lever - Ambi Trigger Packs

    H&K Heckler & Koch

    $26.95
    HK German Ambidextrous Trigger Pack Axle Catch Lever This is the lever that allows you to take apart any of the ambidextrous trigger packs. This lever takes the spring tension off the left and right side selector levers, allowing you to remove and...
    HKP-01636
    $26.95
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  • New - Ergo Sling Loop Rail Mount- Ambidextrous - HKP-14526 Ergo Sling Loop Rail Mount- Ambidextrous
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    Ergo Sling Loop Rail Mount- Ambidextrous

    Ergo

    $29.95
    Ergo Sling Loop Rail Mount- Ambidextrous The ergonomic HK slide mount sling hook base provides an economical means for attaching an HK-style sling hook to all 1913 Picatinny rails. Perfect for mounting on a tactical rail system or other Picatinny forearm...
    HKP-14526
    $29.95
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  • Out Of Stock
    New - Trijicon 90 Series Front & Rear Night Sight Set - HKP-00373 HK90 Series Night Sight Set - Front and Rear

    HK90 Series Night Sight Set - Front and Rear

    Trijicon

    $124.95
    Trijicon 90 Series Front & Rear Night Sight Set Trijicon produces the brightest night sights available for Heckler & Koch sub guns and rifles. These tritium night sight inserts are a no-brainer for quicker, more accurate point-and-shoot...
    HKP-00373
    $124.95
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  • Used - H&K SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED - HKP-20064 HK SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED
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    HK SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED

    H&K Heckler & Koch

    $149.95
    H&K SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED Hand-selected for the highest quality, these "like new" H&K SP5K SEF style trigger housings have been meticulously clipped and pinned to fit the correct SP5K style shelf...
    HKP-20064
    $149.95
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  • New - HKP MP5K/SP89/SP5K 9mm End Cap - HK Style - HKP-16135 HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HKP
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    HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HKP

    HKP HK Parts

    $49.95
    HKP MP5K/SP89/SP5K 9mm End Cap - HK Style This end cap is an identical reproduction of the factory end cap and features the original HK style buffer. Compatible With: MP5K SP5K SP89 In spec. clones and custom builds
    HKP-16135
    $49.95
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  • New - Choate MP5K/SP89 9mm Steel End Cap W/ Buffer - HKP-00395 HK MP5K, SP89 End Cap with Buffer  - 9mm - Steel
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    HK MP5K, SP89 End Cap with Buffer - 9mm - Steel

    Choate

    $45.95
    MP5K & SP-89 Steel End Cap With Replaceable Rubber Buffer Fits perfectly on all HK MP5K-type builds or projects. All metal construction, so you know it will last. Each unit comes with a sling loop for use with multiple sling types. Compatible...
    HKP-00395
    $45.95
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  • New - HKP MP5, MP5K Rear Sight Base - Billeted - HKP-18087
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    HK MP5, MP5K Rear Sight Base - Billeted

    HKP HK Parts

    $17.95
    Billeted MP5, MP5K Rear Sight Base - Weldment All steel HK MP5, MP5K billeted rear sight base. The most correct MP5, MP5K rear sight base available. The only billeted factory correct sight base with the factory HK German side axis grooves. If you want...
    HKP-18087
    $17.95
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