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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  • Out Of Stock
    New - H&K HK MR556/416 Commercial Factory E1 Rear Stock - Black - HKP-15426 HK416, MR556 E1 Buttstock - Factory - Commercial

    HK416, MR556 E1 Buttstock - Factory - Commercial

    H&K Heckler & Koch

    $199.95
    H&K HK MR556/416 Commercial Factory E1 Stock HK 416 factory German E1 Stock latest HK German stock for all HK 416/MR556 rifles. This HK 416 HKE1 Buttstock fits Commercial buffer tubes (receiver extensions) for M4/AR15 type weapons. NO LONGER OFFERED...
    HKP-15426
    $199.95
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  • New - HK G36 Backplate Complete w/ Recoil Assembly - HKP-18537 HK G36 Backplate, Complete - Recoil Buffer and Assembly
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    HK G36 Backplate, Complete - Recoil Buffer and Assembly

    USA

    $84.95
    HK G36 Backplate Complete With Recoil Assembly New G36 Backplate with new G36/SL8 recoil buffer and recoil assembly. This assembly does include the recoil rod retaining screw. This is a great spare or replacement to have on hand. These are also required...
    HKP-18537
    $84.95
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  • New - H&K UMP/USC (.45 ACP) Extractor - HKP-00265 HK UMP, USC Extractor - .45 ACP
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    HK UMP, USC Extractor - .45 ACP

    H&K Heckler & Koch

    $49.95
    New USC & UMP .45 Extractor - German Compatible with both the USC & UMP. Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once it is removed from the...
    HKP-00265
    $49.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Magazine Floor Plate - HKP-16493 HK UMP Magazine Floorplate
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    HK UMP Magazine Floorplate

    H&K Heckler & Koch

    $9.95
    HK Heckler and Koch German Magazine Floorplate for All HK UMP Magazines  Compatible With: UMP .45 UMP .40 UMP 9mm These can become cracked or broken with use or drops onto hard surfaces.
    HKP-16493
    $9.95
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  • New - H&K 21E/11E (7.62x51/.308) Extractor Spring - HKP-00815
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    HK21E, HK11E Extractor Spring

    H&K Heckler & Koch

    $24.95
    HK21E & 11E Factory Extractor Spring Made by HK Germany for all HK21E's and 11E's.
    HKP-00815
    $24.95
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  • New - H&K MP5 40/10 Magazine Release Lever Spring - HKP-18109 HK MP5 Magazine Release Lever Spring - .40 S&W, 10mm
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    HK MP5 Magazine Release Lever Spring - .40 S&W, 10mm

    H&K Heckler & Koch

    $9.95
    HK Heckler and Koch Magazine Release Lever Spring for HK MP5 .40 S&W and 10mm The needed spring that fits in the mag release lever and the magwell for the MP5 40,10 series. Made in Germany and no longer offered or made. These units are the latest...
    HKP-18109
    $9.95
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  • New - B&T HK MP5 9mm Barrel - Threaded 1/2x28 - 3-Lug - HKP-17955 HK MP5 Barrel - 9mm - Threaded 1/2x28 with 3 Lug
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    HK MP5 Barrel - 9mm - Threaded 1/2x28 with 3 Lug

    B&T Brugger & Thomet

    $378.95
    B&T HK MP5 9mm Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, these MP5 barrels are cold hammer forged, fluted, and nitrided to exact HK specifications. B&T's close relationship with H&K and extensive history of...
    HKP-17955
    $378.95
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  • Out Of Stock
    New - HKP HK MR556/416, HK MR762/417 Flip Up Rear Sight-2mm - HKP-17717 HKP HK MR556/416, HK MR762/417 Flip Up Rear Sight-2mm HKP HK Parts HKP-17717

    HK416, HK417, MR556, MR762 Flip Up Rear Sight - 2mm

    HKP HK Parts

    $139.95
    HK 416, MR556 & MR762, 417 Flip Up Rear Sight Diopter 2mm Sight Attaches to any standard picatinny rail. No hardware needed as this is a self-contained quick attach rear sight assembly. This unique sight features a quick & easy push button...
    HKP-17717
    $139.95
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  • New - HKP HK USP .45 ACP 16X1 LH Thread Protector - HKP-22177 HK USP Thread Protector - .45 ACP - 16X1 LH
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    HK USP Thread Protector - .45 ACP - 16X1 LH

    HKP HK Parts

    $19.95
    HKP HK USP .45 ACP 16X1 LH Thread Protector Thread protector for 16X1 left-hand .45 ACP barrels.   Compatible With: HK USP .45 & Compact HK45 & Compact HK UMP/USC Firearms with 16X1 left-hand threaded .45 ACP barrels NOT compatible...
    HKP-22177
    $19.95
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  • New - HKP HK MP5/SP5 Raised MRO Optic Mount - HKP-21891 HK MP5, SP5 Optic Mount - Raised - Trijicon MRO
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    HK MP5, SP5 Optic Mount - Raised - Trijicon MRO

    HKP HK Parts

    $134.95
    HKP HK MP5/SP5 Raised Trijicon MRO Optic Mount The HKP Raised MRO Optic Mount was designed to give the shooter full view of both the MRO and the factory sights. The MRO mounting base is elevated enough to give an unobstructed view through the factory...
    HKP-21891-M
    $134.95
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  • New - Zenith 30 Round HK MP5 9mm Magazine - TiN Coated - HKP-21645 HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - TiN Coated
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    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - TiN Coated

    Zenith

    $99.95
    Zenith 30 Round HK MP5 9mm Magazine - TiN Coated Elevate your gear with our TiN coated Zenith magazines. Each magazine begins as a regular 9mm, 30 round mag that is expertly disassembled, coated with durable TiN, and meticulously reassembled for optimal...
    HKP-21645
    $99.95
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  • Out Of Stock
    New - Zenith 30 Round HK MP5 Subsonic Labeled Magazine - HKP-20829 HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Subsonic Pew Pew

    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Subsonic Pew Pew

    Zenith

    $43.95
    Zenith 30 Round HK MP5 Subsonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Features: Durable electro-plated black finish for exceptional corrosion resistance All steel...
    HKP-20829
    $43.95
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