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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  • New - X Products HK 93/53/33 (5.56/.223) 50 Round Drum Magazine - HKP-17812 HK33, HK53, HK93 50 Round Drum Magazine
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    HK33, HK53, HK93 50 Round Drum Magazine

    X Products

    $349.95
    50 Round Drum HK 93, 33, 53 & Clones, Custom Builds - X93, 33, 53 X Products 50 round drum for the HK93, 33, 53 family of firearms. Will fit all in-spec firearms made to German HK magwell specs.  Each drum in this limited run was crafted from...
    HKP-17812
    $349.95
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  • New - RCM MP5K/SP89/SP5K 9mm RS Trunnion - HKP-02242 HK MP5K, SP89, SP5K Trunnion - 9mm - RS
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    HK MP5K, SP89, SP5K Trunnion - 9mm - RS

    RCM

    $69.95
    MP5K Reverse Stretch Trunnion US-made to exact factory HK specifications for the HK MP5K, SP89 9mm builds. There is a difference between the MP5K and the MP5 trunnion. This offering is the correct trunnion for the MP5K and all MP5K PDW variants,...
    HKP-02242
    $69.95
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  • New - MP5K Complete Weldment Set - HKP-16231 MP5K Complete Weldment Set
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    MP5K Complete Weldment Set

    $59.95
    MP5K Complete Weldment Set  Each set of weldments is all of the weldments required for an MP5K flat. Includes: Rear sight base Sight tab Case deflector Semi auto shelf Side reinforcement tabs 2 X rear stock bushings
    HKP-16231
    $59.95
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  • New - B&T MP5 Mounting Rail, Armasuisse Version - HKP-16864 HK MP5, SP5, HK94 Optic Mount - Armasuisse Version
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    HK MP5, SP5, HK94 Optic Mount - Armasuisse Version

    B&T Brugger & Thomet

    $219.95
    B&T MP5 Mounting Rail, Armasuisse Version   Compatible With: HK MP5, SP5 HK 94 MAC-5 clones may require custom fitment. Modified components are not eligible for return. In-spec clones & custom builds
    HKP-16864
    $219.95
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  • New - JMAC Universal M-LOK Skeleton Forward Grip - HKP-21240 M-LOK Foregrip - Skeleton
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    M-LOK Foregrip - Skeleton

    JMAC Customs

    $89.95
    JMAC Universal M-LOK Skeleton Forward Grip  Can be used as a forward grip or a handstop! Features: Reversible and Lightweight M-LOK Compatible (Requires 2 slots) Fits in and across M-LOK Slots Includes mounting hardware 7075 T6 Aluminum Hard Coat...
    HKP-21240
    $89.95
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  • On Sale
    New - HK MP5 QD End Cap with Buffer - Black - HKP-20118 HK MP5 QD End Cap with Buffer
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    HK MP5 QD End Cap with Buffer

    HKP HK Parts

    Now: $63.95
    Was: $99.95
    Quick Detach Steel End Cap With Replaceable Rubber Buffer - HK MP5 With this MP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip top condition for years to come. Machined aircraft...
    HKP-20118
    Now: $63.95
    Was: $99.95
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    Was: $99.95
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  • New - GSG9 HK G36/UMP/SL8/USC Hammer - HKP-19852 HK G36, SL8, UMP, USC Hammer
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    HK G36, SL8, UMP, USC Hammer

    GSG9

    $124.95
    G36 & HK UMP Hammer For Lower Or Trigger Group- US Made These hammers are a direct fit on the USC and SL8 platform.
    HKP-19852
    $124.95
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  • New - H&K HK MP5, MP5K MIM & Machined Rear Sight Base - HKP-19705 HK MP5, MP5K Rear Sight Base - MIM and Machined
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    HK MP5, MP5K Rear Sight Base - MIM and Machined

    H&K Heckler & Koch

    $14.95
    MP5, MP5K Rear Sight Base - Weldment New HK MP5, MP5K 17-4 Stainless H900 rear sight base. The most correct MP5, MP5K rear sight base available. The only factory correct sight base with the factory HK German side axis grooves. If you want your build to...
    HKP-19705
    $14.95
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  • Out Of Stock
    New - HKP 10 Round MP5 40/10 Magazine Block - HKP-18170 MP5, MP5K Magazine Block - 10mm / .40 S&W - 10 to 30 Round Conversion

    MP5, MP5K Magazine Block - 10mm / .40 S&W - 10 to 30 Round Conversion

    HKP HK Parts

    $9.95
    HKP 10 Round MP5 40/10 Magazine Block MP5 10/30 mag block plug. This is designed to use on the HK MP5 40/10 30 round magazine. Very easy to install & use.  Compatible With: MP5 .40, MP5 10mm Clones or other custom builds
    HKP-18170
    $9.95
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  • New - H&K HK MR556/416 Enhanced Field Cleaning Kit - HKP-17061 HK416, MR556 Enhanced Field Cleaning Kit
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    HK416, MR556 Enhanced Field Cleaning Kit

    H&K Heckler & Koch

    $169.95
    HK HK416/ MR556 (all variants & models) field cleaning kit- Enhanced Cleaning kit made both the HK 416, MR556 series of rifles and MG's. Includes: Saf-T-Clad Cleaning Rod HK Carbon Scraping Tool Accessory Adapter Section #8-32 Patch Holder Chamber...
    HKP-17061
    $169.95
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  • New - H&K HK MR556/416 Threaded Pin for Buttstock Insert - HKP-16604 HK416, MR556 Threaded Pin for Buttstock Release Inserts - E1, E2
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    HK416, MR556 Threaded Pin for Buttstock Release Inserts - E1, E2

    H&K Heckler & Koch

    $9.99
    H&K HK MR556/416 Threaded Pin for E1/E2 Buttstock Release Lever Insert New HK German manufactured E1/E2 stock release and tightening screw that takes the slack and slop out of the stock when in desired position. Compatible With: HK MR556 HK 416
    HKP-16604
    $9.99
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  • Out Of Stock
    New - H&K HK MR556/MR762/416 Fire Control Detent Stop Pin - HKP-15272

    HK416, MR556, MR762 Fire Control Detent Stop Pin

    H&K Heckler & Koch

    $20.95
    H&K HK MR556/MR762/416 Fire Control Detent Stop Pin HK German manufacture. Compatible With: HK MR556 HK416 HK MR762
    HKP-15272
    $20.95
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