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 - Geissele HK 416 M-LOK 10.5" Handguard - Black - HKP-19990 HK416, MR556 Handguard - 10.5" - M-LOK
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    HK416, MR556 Handguard - 10.5" - M-LOK

    Geissele

    $472.00
    HK416 Super Modular Rail MK15 M-LOK - 10.5" The Super Modular Rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength, rigidity...
    HKP-19990
    $472.00
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    $472.00
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  • New - Kinetic Development Group HK USC Conversion to ACR Stock Upgrade - FDE - HKP-19845 HK USC Conversion to ACR Stock Upgrade - FDE
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    HK USC Conversion to ACR Stock Upgrade - FDE

    KDG Kinetic Development Group

    $459.95
    HK USC-UMP ACR Stock Adapter & ACR Stock Combo - Brown A new product that allows you to add the widely popular Remington ACR folding, adjustable stock to your USC-UMP conversion. Each unit comes complete with the ACR stock, hinge pin, sling mount and...
    HKP-19845
    $459.95
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    $459.95
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  • HK45 Thread Protector - .578x28 RH - Knurled HK45 Thread Protector - .578x28 RH - Knurled
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    HK45 Thread Protector - .578x28 RH - Knurled

    HKP HK Parts

    $14.95
    HKP HK Parts HK45 Thread Protector - Threaded .578x28 RH - .45 ACP The new US-made .45 ACP tactical thread protector, the cap fits all HK45 full size & compact barrels threaded .578x28 RH thread. A must-have item to protect your threaded barrels,...
    HKP-17623
    $14.95
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    $14.95
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  • Out Of Stock
    New - MI HK93/33 M-LOK Handguard - Black - HKP-18440 HK33, HK93 Handguard - M-LOK

    HK33, HK93 Handguard - M-LOK

    MI Midwest Industries

    $175.95
    MI HK93/33 M-LOK Handguard Brand new Midwest Industries M-LOK handguard for your HK93, HK33, G3K or similar clone. This is also the correct forearm to use on PTR models that use a shorter 9" length or carbine length forearm. Features: Made in the USA,...
    HKP-18440
    $175.95
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    $175.95
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  • New - H&K HK MP7 Compression Spring - HKP-16782
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    HK MP7 Compression Spring

    H&K Heckler & Koch

    $5.95
    H&K HK MP7 Compression Spring
    HKP-16782
    $5.95
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    $5.95
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  • New - HK G36/SL8 (5.56/.223) Bolt Head Ejector Pin - HKP-18372 HK G36, SL8 Bolt Head Ejector Pin
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    HK G36, SL8 Bolt Head Ejector Pin

    $6.95
    HK G36/SL8 (5.56/.223) Bolt Head Ejector Pin HK Ejector roll pin for G36, SL8 bolt heads. This item is the pin that holds the ejector & ejector spring in place. A common wear & replacement item and a must have when doing bolt head maintenance...
    HKP-18372
    $6.95
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    $6.95
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  • Used - H&K 93/53/33 (5.56/.223) Surplus Fixed Stock - A2 - Jungle Green - HKP-18887 HK33, HK53, HK93 A2 Fixed Buttstock - Surplus - Jungle Green
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    HK33, HK53, HK93 A2 Fixed Buttstock - Surplus - Jungle Green

    H&K Heckler & Koch

    $122.95
    Surplus - Fixed Stock - Jungle Green - HK93,33,53 Hand-picked stocks in excellent condition. Comes with matching buttpad. Ready to install on your HK or clone rifle. German military surplus, but handpicked to give you the best of the offerings...
    HKP-18887
    $122.95
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    $122.95
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  • New - H&K MP5K/SP89/SP5K 9mm Rear Sight Drum - HKP-01110
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    HK MP5K, SP89, SP5K Rear Sight Drum - 9mm

    H&K Heckler & Koch

    $79.95
    HK German MP5K, SP89 and SP5K Factory Rear Sight Drum New factory correct German HK MP5K, SP89, and SP5K rear sight drum. Compatible With: MP5K SP89 SP5K Other custom builds or clones Please Note: Many shooters prefer to upgrade to the MP5 rear...
    HKP-01110
    $79.95
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    $79.95
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  • New - H&K MP5 A3 Retractable Buttstock Bushing - HKP-16405 HK MP5 A3 Retractable Buttstock Bushing
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    HK MP5 A3 Retractable Buttstock Bushing

    H&K Heckler & Koch

    $14.95
    HK MP5 A3 Retractable Stock Cap, Bushing- MP5 Navy Stock Newer 2 generation stock cap bushing for the factory MP5-N series of A3 stocks.Not for use on the 1st generation all metal (70-80's) A3 retractable stocks. Not for use on the 3rd generation of MP5...
    HKP-16405
    $14.95
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    $14.95
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  • New - RCM HK MP5 9mm Barrel - Non-Threaded 3-Lug - HKP-02040 HK MP5 Barrel - 9mm - 8.85" - 3 Lug
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    HK MP5 Barrel - 9mm - 8.85" - 3 Lug

    RCM

    $149.95
    RCM HK MP5 9mm Barrel - Non-Threaded 3-Lug Made from Cold Hammer Forged (CHF) steel, each high-quality barrel is processed with a durable nitride finish, similar to the treatment used by Sig Sauer. Precision-milled to the latest specifications with...
    HKP-02040
    $149.95
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    $149.95
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  • New - HKP MP5, MP5K Rear Sight Base - HKP-02450 HK MP5, MP5K Rear Sight Base
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    HK MP5, MP5K Rear Sight Base

    HKP HK Parts

    $19.95
    HKP HK Parts Rear Sight Base - Weldment for HK MP5 and HK MP5K The only factory-correct sight base with the factory HK German side axis grooves.  Compatible With: MP5, MP5K SP89, HK94 MP5 40, MP5 10 MAC-5 clones may require custom fitment...
    HKP-02450
    $19.95
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    $19.95
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  • New - Magpul XTM Hand Stop Kit - HKP-14535 Handstop Kit - XTM
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    Handstop Kit - XTM

    Magpul

    $19.95
    Magpul XTM Hand Stop Kit The four-piece XTM Hand Stop Kit is a lightweight, low-profile rail-mounted index point for improved weapon control or as a forward stop to prevent the shooter's hand from reaching the hot front sight assembly or muzzle. The kit...
    HKP-14535
    $19.95
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    $19.95
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