HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • On Sale
    Used - HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special - HKP-99103 HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special || HKP-99103 || HKPARTS
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    HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special

    USA

    Now: $19.95
    Was: $59.95
    HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special MP5 length trigger housing perfect for projects or custom builds, each marked with the SE pictogram. The condition will vary from part-to-part vs. the pictured unit. Please Note:...
    HKP-99103
    Now: $19.95
    Was: $59.95
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    Was: $59.95
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  • New - Magpul M-Lok Paraclip Sling Mount - HKP-21874 M-Lok Paraclip Sling Mount
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    M-Lok Paraclip Sling Mount

    Magpul

    $19.95
    Magpul M-Lok Paraclip Sling Mount The M-LOK Paraclip Sling Mount is a steel clip-in sling mount for M-LOK compatible systems. It is constructed of high-grade, precision cast steel and has an extremely durable QPQ salt bath nitride finish. With a...
    HKP-21874
    $19.95
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  • New - SB Tactical HK MP5K SBA5 Pistol Stabilizing Brace - HKP-21795-M HK MP5K Pistol Stabilizing Brace - SBA5
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    HK MP5K Pistol Stabilizing Brace - SBA5

    SB Tactical

    $248.95
    SB Tactical HK MP5K SBA5 Pistol Stabilizing Brace SB Tactical combined with our MP5K end cap creates a true drop-in brace, perfect for those seeking the flexibility that the SBA5 pistol stabilizing brace offers. With a 5-position adjustable length, this...
    HKP-21795-M
    $248.95
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    $248.95
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  • HK MP5K, AP5-P Trigger Group HK MP5K, AP5-P Trigger Group
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    HK MP5K, AP5-P Trigger Group

    MKE

    $479.95
    Century AP5-P, AP5-M Trigger Group This trigger group serves as a direct replacement for AP5-P, AP5-M, Zenith clones, and factory MP5K receivers. For customers needing compatibility with shelfed receivers, we also offer a clip-pin service as an optional...
    HKP-21668
    $479.95
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  • New - H&K HK 416/MR556 Cleaning Kit with Green Pouch - HKP-21623 HK416, MR556 Cleaning Kit - Green Pouch
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    HK416, MR556 Cleaning Kit - Green Pouch

    H&K Heckler & Koch

    $64.95
    H&K HK 416/MR556 Cleaning Kit with Green Pouch This is a genuine HK factory cleaning kit. Includes: Nylon storage bag, olive green Nylon brush Cleaning rod, 6 parts Barrel brush Chamber brush Oil brush Oil bottle, empty Cleaning wipes, 50 ea...
    HKP-21623
    $64.95
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    $64.95
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  • New - B&T G36 (5.56/.223) Flash Hider with Interface for Rotex - HKP-21531 B&T G36 (5.56/.223) Flash Hider with Interface for Rotex
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    B&T G36 (5.56/.223) Flash Hider with Interface for Rotex

    B&T Brugger & Thomet

    $144.99
    B&T G36 (5.56/.223) Flash Hider with Interface for Rotex Compatible With: HK G36 HK93, HK33 5.56/.223 firearms threaded 15X1 RH Specifications: Made in Switzerland Threaded 15x1 RH Does not include face shims
    HKP-21531
    $144.99
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  • Out Of Stock
    New - B&T HK G36/G36K NAR Mounting Rail - HKP-21529 HK G36, 36K NAR Mounting Rail

    HK G36, 36K NAR Mounting Rail

    B&T Brugger & Thomet

    $339.95
    B&T HK G36/G36K NAR Mounting Rail with Emergency Sight  B&T NAR (picatinny compatible) mounting rail for HK G36/G36K with emergency sight. Compatible With: HK G36 HK G36K  
    HKP-21529
    $339.95
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    $339.95
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  • New - HKP HK UMP 5 Prong Flash Hider - 5/8x24 - HKP-21523 HK UMP 5 Prong Flash Hider - 5/8x24
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    HK UMP 5 Prong Flash Hider - 5/8x24

    HKP HK Parts

    $67.95
    HKP HK UMP 5 Prong Flash Hider - 5/8x24 Compatible With: HK UMP
    HKP-21523
    $67.95
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  • On Sale
    New - Magpul HK MP5 Adapter Brace with Stock - HKP-21402-M HK MP5 Stock with Brace Adapter
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    HK MP5 Stock with Brace Adapter

    HKP HK Parts / Magpul

    Now: $149.95
    Was: $189.95
    Magpul HK MP5 Adapter with Stock MP5 DT Magpul stock ready to install on any in-spec MP5 receiver or clone. We take our AR MP5 Adapter and attach it onto a mil-spec buffer tube before combining it with the new Magpul DT Carbine stock. This is a great...
    HKP-21402-M
    Now: $149.95
    Was: $189.95
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    Now: $149.95
    Was: $189.95
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  • New - RCM HK SP5K Semi Auto Carrier - HKP-20983 HK SP5K Carrier - Semi Auto
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    HK SP5K Carrier - Semi Auto

    RCM

    $159.95
    RCM HK SP5K Semi Auto Carrier SP5K semi-auto carrier machined completely from billet ordnance steel. RCM US made SP5K carrier is made to the most updated and latest SP5K  specs and more. Tungsten filled, heat treated, phosphate finish and all...
    HKP-20983
    $159.95
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  • Out Of Stock
    New - Michaels Machines HK UMP .45 Semi-Auto Bolt Group - Complete - HKP-20627 HK UMP .45 Semi-Auto Bolt Group - Complete

    HK UMP .45 Semi-Auto Bolt Group - Complete

    Michaels Machines

    $749.95
    Michaels Machines HK UMP .45 Semi-Auto Bolt Group - Complete MM’s UMP Tungsten filled UMP .45 bolt carrier complete. Heat treated, parkarized and polished for the best look and function possible, as an added bonus it now includes German HK...
    HKP-20627
    $749.95
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    $749.95
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  • New - Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete - HKP-20626 HK UMP .40 Semi-Auto Bolt Group - Complete
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    HK UMP .40 Semi-Auto Bolt Group - Complete

    $649.95
    Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete MM’s UMP tungsten filled UMP .40 bolt carrier. Heat treated, parkarized and polished for the best look and function possible, as an added bonus it now includes German HK internals which...
    HKP-20626
    $649.95
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