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
    New - HKP HK 93/53/33 (5.56/.223) AR-15 Style Brace/Stock Adapter - HKP-16255 HK33, HK53, HK93 Stock or Brace Adapter - AR-15 Style
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    HK33, HK53, HK93 Stock or Brace Adapter - AR-15 Style

    HKP HK Parts

    Now: $174.95
    Was: $199.95
    HKP HK 93/53/33 (5.56/.223) AR-15 Style Brace/Stock Adapter PTR Manufactured AR15 to HK 93,33,53 series stock adopter assembly. Each adopter unit will allow the use of AR15 stocks on your HK 93,33,53, C93/C53 or HK94, MP5 firearm. Each assembly includes...
    HKP-16255
    Now: $174.95
    Was: $199.95
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    Now: $174.95
    Was: $199.95
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  • New - X Products HK 93/53/33 (5.56/.223) 50 Round Drum Magazine - HKP-17812 HK33, HK53, HK93 Drum Magazine - 50 Round
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    HK33, HK53, HK93 Drum Magazine - 50 Round

    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 - 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 - HKP 9mm Titanium Muzzle Brake - 3-Lug - HKP-18854 HKP 9mm Titanium Muzzle Brake - 3-Lug
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    HKP 9mm Titanium Muzzle Brake - 3-Lug

    HKP HK Parts

    $104.95
    Titanium Muzzle Brake for 3- Lug Barrels - 9mm - US - MP5, MP5K Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This muzzle brake doesn't require the of threads as it attached to the 3 lug tip. Also a great addition for any...
    HKP-18854
    $104.95
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    $104.95
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  • New - H&K Cocking Tube End Cap Detent - HKP-18050
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    HK MP5, HK91, G3, HK33 Cocking Tube Detent End Cap

    H&K Heckler & Koch

    $4.95
    HK German Cocking Tube End Cap/Dust Cap Detent HK German cocking tube detent for all steel and aluminum cocking tube end caps. Made of steel and finished in black.
    HKP-18050
    $4.95
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    $4.95
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  • HK MP5K, AP5-P Vertical Foregrip HK MP5K, AP5-P Vertical Foregrip
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    HK MP5K, AP5-P Vertical Foregrip

    MKE

    $44.95
    MKE Made Vertical Foregrip MKE vertical grip for the HK MP5K models. Compatible With: HK MP5K, SP89 HK SP5K Century AP5-P, AP5-M In-spec clones and custom builds
    HKP-22471
    $44.95
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  • HK MP5, MP5K Faux Suppressor - KAC Style - 1/2x28 HK MP5, MP5K Faux Suppressor - KAC Style - 1/2x28
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    HK MP5, MP5K Faux Suppressor - KAC Style - 1/2x28

    MFI

    $138.95
    MFI HK MP5K, SP5K KAC-Navy Faux Suppressor - 1/2x28 The MFI faux KAC-Navy suppressor is designed to thread onto any 1/2x28 barrels and fully enclose the 3-lugs, ensuring an authentic looking fit and finish. Inspired from the coveted KAC MP5N suppressor,...
    HKP-22364
    $138.95
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  • HK MP5K, SP5K Binary Trigger Group - SEF Ambi - BFSIII - 9mm - Contoured HK MP5K, SP5K Binary Trigger Group - SEF Ambi - BFSIII - 9mm - Contoured
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    HK MP5K, SP5K Binary Trigger Group - SEF Ambi - BFSIII - 9mm - Contoured

    FA Franklin Armory

    $1,499.95 - $1,549.95
    Franklin Armory HK MP5K - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured In position 3 it will fire 1 round on pull and 1 round on release. With a 4.5 lb trigger pull, making this the fastest semi-automatic trigger on the market...
    HKP-20005-M
    $1,499.95 - $1,549.95
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  • New - RCM HK93 Trunnion - HKP-20807 HK93 Trunnion
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    HK93 Trunnion

    RCM

    $65.00
    RCM HK93 Trunnion Made to exact factory HK specifications for the HK93, HK33  type builds. These are the best trunnions of their kind on the market. Machined to HK spec making the install painless and hassle free. The way a custom HK build it should...
    HKP-20807
    $65.00
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    $65.00
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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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  • Out Of Stock
    New - HKP 10 Round MP5 40/10 Magazine Block - HKP-18170 HK MP5, MP5K Magazine Block Plug - 10 to 30 Round Conversion - 10mm / .40 S&W

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

    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
    Out Of Stock
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    $9.95
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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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