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 - HDPS HK UMP (.45 ACP) Threaded Barrel - 16x1 LH - HKP-02634 HK UMP Barrel - .45 ACP - 7.87" - Threaded 16x1 LH
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    HK UMP Barrel - .45 ACP - 7.87" - Threaded 16x1 LH

    HDPS

    $349.95
    HK UMP & USC 45 ACP 8" Threaded Barrel HDPS UMP barrels are perfect for the USC to UMP conversions and a replacement UMP .45 barrel. They are considered by many to be the finest US-made barrel available. This barrel is the same length as a factory HK...
    $349.95
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  • Out Of Stock
    Used - H&K MP5 A3 Stock - Surplus - Good Condition - HKP-16659 H&K MP5 A3 Stock - Surplus - Good Condition H&K Heckler & Koch HKP-16659

    HK MP5 A3 Stock - Surplus - Good Condition

    H&K Heckler & Koch

    $578.95
    Military German manufactured A3 Retractable Stock - Used Each Used German HK stock will vary from Fair-Good Shape (early 80's manufacture) A one-time offering of some well used German military stocks that need some TLC and a refinish to get them looking...
    $578.95
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  • On Sale
    Used - Taiwanese T65 Retro Parts Kit - HKP-19676 T65 Rifle Parts Kit - Gas Piston - Vintage Taiwanese
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    T65 Rifle Parts Kit - Gas Piston - Vintage Taiwanese

    Other

    Now: $899.95
    Was: $1,119.95
    Taiwanese T65 Gas Piston Rifle Parts Kit - Vintage We have a limited number of these super rare gas piston rifle parts kits.  Each kit was used in Central & South America during active military conflicts and civil war. These kits are heavily...
    Now: $899.95
    Was: $1,119.95
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    Now: $899.95
    Was: $1,119.95
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  • Out Of Stock
    New - H&K HK G36, HK G36K Full Size Folding Stock - Black - HKP-00277

    HK G36, 36K Folding Stock - Full Size

    H&K Heckler & Koch

    $74.95
    HK G36 or G36K Folding Stock HK G36 Stock complete for full-size G36 rifles. This is the longest stock available for G36 rifles. This is also the standard G36 and G36K stock with the standard length. Compatible With: G36 G36K G36C G36E SL8 to G36...
    $74.95
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  • Used - H&K German Leather Sling - Used-Very Good - HKP-20345 HK German Leather Sling - Used-Very Good
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    HK German Leather Sling - Used-Very Good

    H&K Heckler & Koch

    $59.95
    Original  Surplus German HK Leather 2 point sling - Used- Very Good Comes with HK sling hook. Pulled from German military G3 rifles. Complete and in good shape overall. Made with leather straps and steel hardware and HK sling hook. Last of the...
    $59.95
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  • New - RCM HK MP5K/N 9mm Barrel - Threaded 1/2x28 - 3-Lug - HKP-19330 HK MP5K, MP5KN Barrel - 9mm - 5.85" - Threaded 1/2x28 with 3 Lug
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    HK MP5K, MP5KN Barrel - 9mm - 5.85" - Threaded 1/2x28 with 3 Lug

    RCM

    $164.95
    RCM HK MP5K/N 9mm Barrel - Threaded 1/2x28 - 3-Lug Machined from a cold hammer forged blank to the latest MP5KN PDW specifications, this barrel features factory-correct, updated 16 flutes in the chamber. It is 3-lugged, threaded, and designed to...
    $164.95
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    $164.95
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  • New - HK .45 ACP Titanium Thread Protector - Threaded 16x1 LH - HKP-17942 HK45 Thread Protector - 16x1 LH - Titanium
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    HK45 Thread Protector - 16x1 LH - Titanium

    $24.95
    HK .45 ACP Titanium Thread Protector - Threaded 16x1 LH Crafted from solid titanium, this tactical thread protector fits all HK45 full-size and compact barrels threaded 16x1 LH. Essential for safeguarding your threaded barrels and exposed threads, it...
    $24.95
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    $24.95
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  • New - GSG9 HK G36/SL8 (5.56/.223) Forearm, Lower, Magwell - Push Pin - HKP-18221
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    HK G36, SL8 Locking Push Pin for Handguards, Lowers, Magwells

    GSG9

    $18.95
    HK G36, SL8 Push Pin For Forearm, Magwell, & Lower  Each push pin/locking pin retains the forearm, magwell, & lower to the upper receiver. Each G36 style firearm uses a total of 3X of these push pins. Compatible With: G36 G36K G36C G36...
    $18.95
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  • Out Of Stock
    New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Ejector Lever - HKP-00263 HK UMP, USC Lever - Ejector - 9mm / .40 S&W / .45 ACP

    HK UMP, USC Lever - Ejector - 9mm / .40 S&W / .45 ACP

    H&K Heckler & Koch

    $39.95
    HK German UMP & USC Ejector Lever - German New HK German OEM part. Each unit fits all calibers of UMP & USC firearms. A great spare to have on hand as they are prone to shearing off with use and must be replaced. Compatible With: UMP .45 UMP ...
    $39.95
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  • New - H&K 33/91/93/53/G3 (5.56/.223) & (7.62x51/.308) Recoil Rod Stop Pin - HKP-01157
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    HK33, HK91, G3 Recoil Rod Stop Pin

    H&K Heckler & Koch

    $9.95
    G3, 91, PTR, 93, & 33 Recoil Rod End Cap New HK German recoil rod end cap or stop pin for HK factory recoil rods. This item retains the recoil spring on the recoil rod assembly. A great spare and wear and replacement part. Compatible With: HK G3, 91...
    $9.95
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  • New - RCM HK MP5-E Full Auto Bolt Group - HKP-21351 HK MP5, HK94 Bolt Group - 9mm - Full Auto
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    HK MP5, HK94 Bolt Group - 9mm - Full Auto

    RCM

    $459.95
    RCM HK MP5-E Full Auto Bolt Group Each bolt group incorporates RCM’s F style carrier, MP5-E bolt head, extractor and 100 degree locking piece. This group is 100% US made and the finest out there. Complete and ready to drop in and use. Ideal to...
    $459.95
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  • New - MKE AP5 3-Point Sling - Complete - HKP-21187 Century Arms AP5 3-Point Sling - Complete
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    Century Arms AP5 3-Point Sling - Complete

    MKE

    $34.99
    MKE AP5 3 Point Sling - Complete This is a Factory OEM Sling included with the AP5. Can be utilized on any HK 90 series of firearms.  Compatible With: Century Arms AP5 HK MP5 & SP5 HK MP5K & SP5K HK94
    $34.99
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