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
    Used - FMP HK 21 Stripped Bolt Carrier - HKP-20034 HK21 Bolt Carrier - Stripped - Incomplete
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    HK21 Bolt Carrier - Stripped - Incomplete

    FMP HK CONTRACT

    Now: $387.95
    Was: $499.95
    FMP HK 21 Stripped Bolt Carrier New old stock stripped HK21 FMP Full auto bolt carrier. Missing the catch lever assembly (see pictures). May have storage marks or light rust on the unfinished bottom portion. Long since out of production and no longer...
    HKP-20034
    Now: $387.95
    Was: $499.95
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    Now: $387.95
    Was: $499.95
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  • Out Of Stock
    New - HKP HK UMP, USC, G36, SL8 Sear - HKP-19555 HK UMP, USC, G36, SL8 Sear, Complete

    HK UMP, USC, G36, SL8 Sear, Complete

    HKP HK Parts

    $14.95
    HKP HK Parts Complete Sear for HK G36, HK UMP, HK USC, and HK SL8 Made in the USA Compatible With: UMP USC G36 SL8
    HKP-19555
    $14.95
    Out Of Stock
    Qty in Cart: 0
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    $14.95
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  • New - H&K HK MR762/417 Handguard Compression Spring - HKP-16796
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    HK417, MR762 Handguard Compression Spring

    H&K Heckler & Koch

    $8.95
    H&K HK MR762/417 Handguard Compression Spring   Heckler & Koch compression spring for HK MR762 and HK 417 handguard   Compatible With: HK MR 762 HK 417
    HKP-16796
    $8.95
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    $8.95
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  • New - HK G41 Firing Pin - HKP-02050
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    HK G41 Firing Pin

    H&K Heckler & Koch

    $24.95
    HK G41 Firing Pin
    HKP-02050
    $24.95
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    $24.95
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  • New - B&T HK G36/SL8 (5.56/.223) Mounting Rail - HKP-16867 HK G36, SL8 Optic Mount, Carry Handles
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    HK G36, SL8 Optic Mount, Carry Handles

    B&T Brugger & Thomet

    $139.95
    B&T HK G36/SL8 Optic Mounting Rail B&T optic mounting rail for HK G36, SL8 HK carry handles, Spanish Military version.  Specifications: Height: 23.7 mm Width: 26.9 mm Weight: 113 g Material: Aluminum Treatment: Hardcoat anodized
    HKP-16867
    $139.95
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    $139.95
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  • Out Of Stock
    New - HDPS HK UMP (.40 S&W/.45 ACP) Birdcage Flash Hider - HKP-02694 HK UMP Birdcage Flash Hider

    HK UMP Birdcage Flash Hider

    HDPS

    $154.95
    HDPS HK UMP (.40 S&W/.45 ACP) Birdcage Flash Hider This part is made to fit all US-made or German HK-flanged style barrels. HK no longer makes a flash hider for the UMP Subgun. This is the much anticipated HDPS bird cage style UMP...
    HKP-02694
    $154.95
    Out Of Stock
    Qty in Cart: 0
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    $154.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Right - HKP-01892
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    HK UMP, USC Hammer Spring - Right

    H&K Heckler & Koch

    $14.95
    HK UMP & USC Right Side Hammer Spring For Lowers
    HKP-01892
    $14.95
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    $14.95
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  • Out Of Stock
    New - H&K 21 (7.62x51/.308) Countersunk Screw - 6x12MM - HKP-16424

    HK21 Countersunk Screw - 6x12mm

    H&K Heckler & Koch

    $4.95
    HK 21 Countersunk Screw - 6x12MM
    HKP-16424
    $4.95
    Out Of Stock
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    $4.95
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  • New - H&K 21E/23E Backplate - HKP-00241 HK21E, HK23E Backplate
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    HK21E, HK23E Backplate

    H&K Heckler & Koch

    $289.95
    H&K 21E/23E(7.62x51/.308) & (5.56/.223) Backplate These factory German HK21E/23E back plates are no longer in production.  Grab yours before they are gone for good!  
    HKP-00241
    $289.95
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    $289.95
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  • New - HKP HK 91/G3 (7.62x51/.308) Ambidextrous Trigger Pack (0,1) - HKP-17232 HK91, G3 Trigger Pack - Ambi 0,1
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    HK91, G3 Trigger Pack - Ambi 0,1

    HKP HK Parts

    $362.95
    HK Parts and Heckler and Koch 2 Position 0,1 Ambidextrous Trigger Pack for HK91, and HK G3 Finally, a lower cost alternative to the expensive and rare all-German FBI and 0,1 ambi trigger packs.  Each trigger pack comes 100% complete, ready to use...
    HKP-17232
    $362.95
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    $362.95
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  • New - HK 91/G3 (7.62x51/.308) Bolt Head - Stripped - HKP-16636 HK91, G3 Bolt Head - Stripped
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    HK91, G3 Bolt Head - Stripped

    $96.95
    New US Made Bolt Head- Incomplete: CNC machined from HK blueprints to precise tolerances that use the proper steel and heat-treat processes. You WILL NOT find a better quality offering of HK Parts anywhere. All of the bolt heads we offer on our website...
    HKP-16636
    $96.95
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    $96.95
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  • New - H&K Fixed Stock Buttpad - Alpine Green - HKP-17027 HK Fixed Buttstock Buttpad - Alpine Green
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    HK Fixed Buttstock Buttpad - Alpine Green

    H&K Heckler & Koch

    $79.95
    H&K Fixed Stock Buttpad - Alpine Green Perfect for A2 G3, 91, PTR91 & HK33, 53, 93 fixed stocks. This is a factory German brand new in HK wrapping German part.
    HKP-17027
    $79.95
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    $79.95
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