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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  • HK91, G3 Trunnion - New Old Stock HK91, G3 Trunnion - New Old Stock
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    HK91, G3 Trunnion - New Old Stock

    H&K Heckler & Koch

    $79.95
    Heckler and Koch Trunnion for HK91, G3 - New Old Stock Original Heckler and Koch trunnion for HK91 and G3 rifles. This is a new old stock, original-production component from older HK manufacturing runs and has not been previously installed. Ideal for...
    HKP-99363
    $79.95
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  • HK MP5, MKE AP5 Trigger Housing - 9mm - Contoured - ETS HK MP5, MKE AP5 Trigger Housing - 9mm - Contoured - ETS
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    HK MP5, MKE AP5 Trigger Housing - 9mm - Contoured - ETS

    MKE

    $69.99 - $129.95
    MKE AP5, HK MP5 ETS-Style Contoured Trigger Housing This contoured trigger housing is manufactured by MKE for MP5 and AP5 pattern firearms and features an ETS selector configuration. Designed for 9mm platforms, it provides proper ergonomics and...
    HKP-22496-M
    $69.99 - $129.95
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  • HK91, G3, HK33, HK93, HK53 Grip For Metal Frames HK91, G3, HK33, HK93, HK53 Grip For Metal Frames
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    HK91, G3, HK33, HK93, HK53 Grip For Metal Frames

    H&K Heckler & Koch

    $24.95
    Heckler and Koch Grip for Metal Frames for HK91, G3, HK33, HK53, HK93 This HK grip is designed for metal-frame trigger housings used on HK91 and G3 pattern firearms and shares the same grip interface with HK33, HK53, and HK93 platforms. It provides a...
    HKP-22483
    $24.95
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    $24.95
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  • HKP HK MP5 .22LR Aimpoint ACRO Sight - Raised Height HKP HK Parts HKP-22248-M HK MP5 Optic Mount - .22LR - Raised - Aimpoint ACRO
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    HK MP5 Optic Mount - .22LR - Raised - Aimpoint ACRO

    HKP HK Parts

    $119.95
    HKP HK MP5 .22LR Aimpoint ACRO Sight Mount - Raised Height MP5 .22LR raised height mount for the Aimpoint ACRO mounting interface. Our ACRO mounts provide an unobstructed view of the factory HK sights through the mount giving the shooter the best of...
    HKP-22248-M
    $119.95
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  • New - B&T Assault Closed Tine Muzzle Device - HK416/MR556 - 1/2x28 - HKP-22217 Lee Sporting LS5 HK MP5K Complete Trigger Group Flat Trigger - Semi shelf - 3D-Printed Nylon - BLEMISHED Lee Sporting, Magpul HKP-20484-B
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    HK416, MR556 Muzzle Device - Assault - Closed Tine - 1/2x28

    B&T Brugger & Thomet

    $109.00
    B&T Assault Closed Tine Muzzle Device - HK416/MR556 - 1/2x28 Factory B&T 1/2x28 flash hider and suppressor adapter for 5.56 rifles. Includes: ROTEX flash hider Shim kit Rocksett pipette Features: Swiss-manufactured Threaded 1/2x28 High...
    HKP-22217
    $109.00
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    $109.00
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  • New - Nefarious Arms HK MR556 A3 & 416 A5 Barrel Nut - HKP-22082 HK416 A5, MR556 A3 Barrel Nut
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    HK416 A5, MR556 A3 Barrel Nut

    Nefarious Arms

    $39.95
    Nefarious Arms HK MR556 A3/416 A5 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option.  Meticulously crafted in the US to the highest quality standards...
    HKP-22082
    $39.95
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  • On Sale
    HK MP5 9mm 2 Position 0,1 FBI Style Polymer Housing - Push Pin - USED - BLEMISHED HK MP5 9mm 2 Position 0,1 FBI Style Polymer Housing - Push Pin - USED - BLEMISHED
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    HK MP5 9mm 2 Position 0,1 FBI Style Polymer Housing - Push Pin - USED - BLEMISHED

    H&K Heckler & Koch

    Now: $139.95
    Was: $209.95
    H&K MP5 9mm 2 Position 0,1 FBI Style Polymer Housing - Push Pin - USED - BLEMISHED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART...
    HKP-16056-PP-B
    Now: $139.95
    Was: $209.95
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    Now: $139.95
    Was: $209.95
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  • On Sale
    New - HK MP5K Trunnion - Gunsmith Special - HKP-99090 HK MP5K Trunnion - Gunsmith Special
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    HK MP5K Trunnion - Gunsmith Special

    USA

    Now: $24.95
    Was: $54.95
    HK MP5K Trunnion - Gunsmith Special US made HK MP5 trunnions sold as-is. Will require work before being functional. We recommend the work be performed by a professional gunsmith. The condition will vary from part-to-part vs. the pictured unit. Compatible...
    HKP-99090
    Now: $24.95
    Was: $54.95
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    Was: $54.95
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  • On Sale
    New - H&K HK MP5 9mm Complete Full Auto Bolt Group - HKP-21478 HK MP5 Bolt Group - 9mm - Full Auto - Complete
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    HK MP5 Bolt Group - 9mm - Full Auto - Complete

    H&K Heckler & Koch

    Now: $2,245.95
    Was: $2,874.95
    H&K HK MP5 9mm Complete Full Auto Bolt Group This is a factory genuine HK German full auto bolt group compiled with the best German parts available for  those that need the best parts on their beloved MP5. Last call on these as they are NLA and...
    HKP-21478
    Now: $2,245.95
    Was: $2,874.95
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    Now: $2,245.95
    Was: $2,874.95
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  • New - HKP Ambi Housing Franklin Armory Binary Selector Set - RAL 8000 - HKP-21380 HK Binary Selector Set - Ambi Housing - RAL8000
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    HK Binary Selector Set - Ambi Housing - RAL8000

    HKP HK Parts

    $79.95
    HKP/H&K MP5/K 9mm Ambi Housing Franklin Armory Binary Selector Set - RAL 8000 Elevate your Franklin Armory BFSIII HK Binary Trigger Pack with our new aluminum selector lever set, specifically designed for ambidextrous pictogram housings...
    HKP-21380
    $79.95
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  • New - SL Magpul Housing Service - HKP-20614-M
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    SL Magpul Housing Service

    Magpul

    $49.95 - $129.95
    SL Magpul Housing Service Our SL Magpul Housing conversion service can be preformed to convert a MP5 style magpul housing into a MP5K  style housing. We can also convert them to be compatible with the push pin style receivers like a Factory HK MP5,...
    HKP-20614-M
    $49.95 - $129.95
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  • Out Of Stock
    Used - 30 Round Magazine - LEO Marked - Windowless - HK UMP .40 - HKP-20749 HK UMP Magazine - .40 ACP - 30 Round - LEO Marked

    HK UMP Magazine - .40 ACP - 30 Round - LEO Marked

    H&K Heckler & Koch

    $99.95
    Rare Surplus 30 Round Magazine - LEO Marked - Windowless - UMP .40 S/W Rare UMP .40 windowless magazine with LEO markings. Highly unique magazines as these were "early production" magazines that were used before they switched over to the windowed UMP...
    HKP-20749
    $99.95
    Out Of Stock
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    $99.95
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