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 - H&K MP5/SP5, 93/33, G3/91 (9mm, 5.56/.223, 7.62/.308) Unmarked Ambidextrous Housing - Universal - HKP-19854 HK MP5/SP5, 93/33, G3/91 (9mm, 5.56/.223, 7.62/.308) Unmarked Ambidextrous Housing - Universal

    HK MP5/SP5, 93/33, G3/91 (9mm, 5.56/.223, 7.62/.308) Unmarked Ambidextrous Housing - Universal

    H&K Heckler & Koch

    $0.00
    H&K MP5/SP5, 93/33, G3/91 (9mm, 5.56/.223, 7.62/.308) Unmarked Ambidextrous Housing - Universal This unmarked universal ambidextrous lower housing is designed for use with ambidextrous trigger packs, offering versatility across multiple H&K...
    HKP-19854
    $0.00
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    Used - H&K HK G36 Magazine Catch Release Lever - HKP-19771 HK G36, SL8 Bolt Locking Lever - Complete - USED

    HK G36, SL8 Bolt Locking Lever - Complete - USED

    H&K Heckler & Koch

    $9.95
    H&K HK G36, SL8 Complete Locking Lever: USED   The locking lever is installed within the trigger housing, ensuring reliable and secure bolt lockup. Used in good condition.    Compatible With: H&K SL8, G36 H&K USC, UMP
    HKP-19771
    $9.95
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    Used - H&K HK G3, 91 F/A Complete Bolt Group - HKP-19671 HK91. G3 F/A Complete Bolt Group

    HK91. G3 F/A Complete Bolt Group

    H&K Heckler & Koch

    $0.00
    German  G3, 91 F/A Bolt Group CompleteEach Bolt group includes the following factory HK parts: Complete Bolt Head Assembled (extractor, extractor spring, roller retainer plate and rollers) >Firing pin >Firing pin spring >HK91/G3 locking piece...
    HKP-19671
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    New - HK German Carry Handle - HK91, G3, HK93, & HK33 - New Old Stock - HKP-19551 HK German Carry Handle - HK91, G3, HK93, & HK33 - New Old Stock

    HK German Carry Handle - HK91, G3, HK93, & HK33 - New Old Stock

    H&K Heckler & Koch

    $0.00
    HK German Carry Handle for HK91, G3, HK93, & HK33 Weapon Systems - New Old Stock HK German new old stock condition. The carry handle installs by sliding the carry handle over the cocking tube to make contact with the trunnion. This can be installed...
    HKP-19551
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    New - HK UMP Paddle Mag Release Complete Assembly - HKP-19499 HK UMP Paddle Mag Release Complete Assembly

    HK UMP Paddle Mag Release Complete Assembly

    $19.95
    UMP Paddle Magazine Release - US Made - Assembly Complete New UMP Mag release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. Simple & easy to install no gunsmith needed or required. Compatible...
    HKP-19499
    $19.95
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    Used - H&K HK 416 Collapsible Stock Mil Spec - RAL 7008 - HKP-19503 HK416 Collapsible Stock Mil Spec - RAL7008

    HK416 Collapsible Stock Mil Spec - RAL7008

    H&K Heckler & Koch

    $0.00
    Collapsible HK 416 E1 Style Mil Spec - HK 416 RAL 7008 - Dark Earth Color Genuine Heckler & Koch HK416 surplus buttstocks in the RAL 7008 color scheme. HK-USA nows offers these surplus E1 Mil-Spec stocks which can be hard to find and are perfect for...
    HKP-19503
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    New - H&K 21 3 Position Trigger Housing - RARE - HKP-19394 HK21 Trigger Housing - 3 Position - RARE

    HK21 Trigger Housing - 3 Position - RARE

    H&K Heckler & Koch

    $0.00
    H&K 21 3 Position Trigger Housing - RARE This rare 3 position trigger housing features Mexico markings and is designed specifically for the HK21. It is a unique find, never before offered, and has never been available with this...
    HKP-19394
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    New - H&K 30 Round AR-15 5.56x45mm/.223 Magazine - Black - HKP-19359 HK 30 Round AR-15 5.56x45mm/.223 Magazine

    HK 30 Round AR-15 5.56x45mm/.223 Magazine

    H&K Heckler & Koch

    $0.00
    30 Round Magazine with Window - Gen 3 - Heckler and Koch Factory German Heckler & Koch 30-round Gen3 polymer magazines, compatible with 5.56mm weapon systems: HK416 / MR223 / AR15 / M16 / M4 type rifles.
    HKP-19359
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  • New - H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug - HKP-19349 HK MP5 Barrel - .40 S&W - Threaded with 3 Lug - Factory
    Add to Cart

    HK MP5 Barrel - .40 S&W - Threaded with 3 Lug - Factory

    H&K Heckler & Koch

    $1,495.00
    H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug New MP5 .40 S&W barrel. Factory-installed sight tower with sight/sling eyelets and factory finish. Specifications: Threaded 3-Lug Compatible With: HK MP5 .40 S&W Rare & hard to find...
    HKP-19349
    $1,495.00
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    New - H&K HK MR762/417 A2 H-Key Slimline Handguard - Black - HKP-19006 HK417A2, MR762 Handguard - H-Key Slimline

    HK417A2, MR762 Handguard - H-Key Slimline

    H&K Heckler & Koch

    $0.00
    H&K HK MR762/417 A2 H-Key Slimline Handguard - Black Compatible With: All 16.5" & 20" models HK MR762 HK 417/417 A2
    HKP-19006
    $0.00
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    New - H&K HK MR762/417 Extended Picatinny Handguard w/ Flip Up Front - Black - HKP-17331 HK417, MR762 Handguard - Extended - Picatinny - Flip Up Front

    HK417, MR762 Handguard - Extended - Picatinny - Flip Up Front

    H&K Heckler & Koch

    $0.00
    HK MR762, HK 417 Extended Quad Rail With Flip Up Front Sight Each unit comes with both of the mounting screws, a flip up front sight assembly for emergency use as a backup sight. HK's extended 13" rail allows for longer sight radius and more rail space...
    HKP-17331
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    New - H&K HK MR762/417/G28 Bolt Head Complete - HKP-18143 HK417, MR762, G28 Bolt Head Complete

    HK417, MR762, G28 Bolt Head Complete

    H&K Heckler & Koch

    $439.95
    H&K HK MR762/417/G28 Bolt Head Complete New HK German manufacture Compatible With: HK MR762 HK MR308 HK G28
    HKP-18143
    $439.95
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