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 - JMac Customs 360HD 1/2-28 FD Facemount KeyMount (KeyMicro) - HKP-21825 HK416, MR556 Facemount KeyMount (KeyMicro) - 360HD 1/2-28 FD
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    HK416, MR556 Facemount KeyMount (KeyMicro) - 360HD 1/2-28 FD

    JMAC Customs

    $124.95
    JMac Customs 360HD 1/2-28 FD Facemount KeyMount (KeyMicro) The JMac Customs 360HD is a high-performance muzzle device designed for superior durability, recoil mitigation, and compatibility with suppressors. Engineered with 360° ports for optimal...
    HKP-21825
    $124.95
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  • New - RCM HK MP5 & MP5K 40/10 SD 120 Degree Locking Piece - HKP-21524 HK MP5, MP5K 40/10 SD 120 Degree Locking Piece
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    HK MP5, MP5K 40/10 SD 120 Degree Locking Piece

    RCM

    $44.95
    RCM HK MP5 & MP5K 40/10 SD 120 Degree Locking Piece Compatible With:  MP5/K 10  MP5/K 40 
    HKP-21524
    $44.95
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    $44.95
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  • New - H&K MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned - HKP-20108 HK MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned
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    HK MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned

    H&K Heckler & Koch

    $179.95
    H&K MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned New factory German housing that has the cutout for the bolt hold open found on the MP5 40/10 firearms. Specifications: Made In Germany Clipped & Pinned SEF Pictogram Markings Navy...
    HKP-20108
    $179.95
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  • New - H&K MP5K 9mm 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin - HKP-02184 HK MP5K 9mm 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin
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    HK MP5K 9mm 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin

    H&K Heckler & Koch

    $487.95
    H&K MP5K 9mm 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin This new HK German MP5K 4 position trigger housing features the 0,1,3,F pictogram and is designed as a factory push pin style housing. It is not clipped and pinned, suitable for...
    HKP-02184
    $487.95
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    $487.95
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  • New - HKP MP5 & MP5K 9mm Ambidextrous 0,1 Trigger Pack - HKP-17230 HK MP5, MP5K 9mm Ambidextrous 0,1 Trigger Pack
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    HK MP5, MP5K 9mm Ambidextrous 0,1 Trigger Pack

    HKP HK Parts

    $479.95
    HKP MP5 & MP5K 9mm Ambidextrous 0,1 Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever popular trigger pack available in an...
    HKP-17230
    $479.95
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  • HK MP5K, AP5-P Housing - Contoured - 0, 1 HK MP5K, AP5-P Housing - Contoured - 0, 1
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    HK MP5K, AP5-P Housing - Contoured - 0, 1

    MKE

    $169.95
    MKE Contoured 0, 1 Housing for HK MP5K and MKE AP5-P This contoured 0, 1 (safe/fire) trigger housing is for HK MP5K-pattern firearms and is manufactured in Turkey. Compatible With: MP5K MKE AP5-P, AP5-M In-spec clones and custom builds
    HKP-22468
    $169.95
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  • WOOX M-LOK Rail Covers - Checkered - GEN2 WOOX M-LOK Rail Covers - Checkered - GEN2
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    WOOX M-LOK Rail Covers - Checkered - GEN2

    WOOX

    $38.95 - $48.95
    WOOX Checkered GEN2 HK Rifle, SMG M-LOK Rail Covers The checkered GEN2 M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection. The Checkered texture uses black nylon bushings and is...
    HKP-22463-M
    $38.95 - $48.95
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  • WOOX M-LOK Rail Covers - Teardrop - GEN2 WOOX M-LOK Rail Covers - Teardrop - GEN2
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    WOOX M-LOK Rail Covers - Teardrop - GEN2

    WOOX

    $58.95 - $78.95
    WOOX GEN2 Teardrop M-LOK Rail Covers The teardrop M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection, while bringing that signature wood look to your build. The GEN2 Teardrop pattern uses...
    HKP-22462-M
    $58.95 - $78.95
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  • On Sale
    MKE AP5, MP5 Front Sight Tower - UNFINISHED - BLEMISHED MKE HKP-22220-B MKE AP5, MP5 Front Sight Tower - UNFINISHED - BLEMISHED MKE HKP-22220-B
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    HK MP5, AP5 Front Sight Tower - UNFINISHED - BLEMISHED

    MKE

    Now: $22.46
    Was: $49.95
    MKE AP5, MP5 Front Sight Tower - UNFINISHED - BLEMISHED SOLD INDIVIDUALLY - UNFINISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The front sight tower is a...
    HKP-22220-B
    Now: $22.46
    Was: $49.95
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  • Arm Brace Hook
Arm Brace Hook
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    Arm Brace Hook

    MI Midwest Industries

    $97.95
    Midwest Industries Arm Brace Hook The Arm Brace Hook is designed for pistols that use a 1.2" diameter buffer tube. It provides a secure and stable point of contact while offering a built-in, ambidextrous QD sling interface. Specifications: Works with...
    HKP-22417
    $97.95
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  • HK MP5K End Cap MKE HKP-22373 HK MP5K End Cap MKE HKP-22373
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    HK MP5K End Cap w/ Swivel Attachment

    MKE

    $69.95
    MKE HK MP5K End Cap with Swivel Attachment Durable factory-style end cap designed for MP5K platforms. Provides a secure sling mounting point for MP5K pistols. Compatible With: HK MP5K HK SP89 HK SP5K (may require some fitting, install lower pin before...
    HKP-22373
    $69.95
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  • New - HKP HK MP5K .40/10 Picatinny Rail Brace/Stock Adapter - HKP-21833 HK MP5K Stock or Brace Adapter - 10mm / .40 S&W - Picatinny Rail
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    HK MP5K Stock or Brace Adapter - 10mm / .40 S&W - Picatinny Rail

    HKP HK Parts

    $129.95
    HKP HK MP5K .40/10 Picatinny Rail Brace/Stock Adapter Open your MP5K up to a vast range of brace and stock options with our Picatinny rail stock adapter.  Designed specifically for the MP5K 40 cal and 10mm platforms.  Available exclusively at...
    HKP-21833
    $129.95
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