HK416 / MR556 Series

HK416 / MR556 Series

Our extensive collection boasts a wide array of HK MR556 and HK 416 parts, including precision HK MR556 Barrels and durable HK 416 Stocks. Elevate your rifle's functionality with HK 416 Handguards and HK MR556 Triggers, designed for the discerning shooter seeking top-tier performance.

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    New - B&T NATO A2 to HUB Suppressor Adapter - HKP-21723 B&T NATO A2 to HUB Suppressor Adapter

    B&T NATO A2 to HUB Suppressor Adapter

    B&T Brugger & Thomet

    $250.00
    B&T NATO A2 to HUB Suppressor Adapter Stainless steel adapter that connects NATO-spec A2 flash hiders to any 1.375x24 TPI HUB-compatible suppressor. Features a gate lock and ratchet system for secure, repeatable mounting—used by NATO forces...
    $250.00
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  • New - Nefarious Arms HK 416/MR556 14.5" A3 Barrel - HKP-21589 HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28- A3 - Light
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    HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28- A3 - Light

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 14.5" A3 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting.  Grab this expertly crafted barrel for your next SBR or pistol build.  Compatible With: HK 416 A1,...
    $594.95
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  • New - HKP HK 416 (5.56/.223) A5 Converted Barrel - Threaded 1/2x28 - HKP-21449 HK416 A5 Barrel - 14.5" - Threaded 1/2x28
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    HK416 A5 Barrel - 14.5" - Threaded 1/2x28

    HKP HK Parts

    $588.95
    H&K 416 A5 Converted Barrel - Threaded 1/2x28 These barrels began as standard A3 style but have been precisely machined with an A5-style relief cut to fit HK416 & MR223 A5 uppers. Now, you can have a drop-in barrel for your 416/MR223 A5 upper at...
    $588.95
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  • New - B&T HK MG5 Unigrip QD with Bipod - HKP-21051 HK MG5 Unigrip QD with Bipod
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    HK MG5 Unigrip QD with Bipod

    B&T Brugger & Thomet

    $239.95
    B&T HK MG5 Unigrip QD with Bipod This grip is made for the HK MG5 but is very versatile and can attacht to any firearm that has a forearm with a picatinny rail. It is primarily a foregrip, but due to the integrated bipod (which can be deployed...
    $239.95
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  • On Sale
    New - HKP HK MR556/CR556/MR762 H-Key 14 Rail Segment - HKP-17846 HK MR556, MR762 H-Key 14 Rail Segment
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    HK MR556, MR762 H-Key 14 Rail Segment

    HKP HK Parts

    Now: $17.95
    Was: $39.95
    HKP HK MR556/CR556/MR762 H-Key 14 Rail Segment 14 slot rail segment for the new "HKey" style forearms. This rail section is designed to fit and attach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and similar models...
    Now: $17.95
    Was: $39.95
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    Now: $17.95
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  • New - HK G36/MR556/416 (5.56/.223) Chamber Cleaning Brush - HKP-00803
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    HK416, MR556, G36 Cleaning Brush - Chamber

    HKP HK Parts

    $24.95
    HK G36 & HK SL8 German Chamber Cleaning Brush (Cleans INSIDE Chamber) More details...
    $24.95
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  • New - HK 416, MR556 Roll Pin for Charging Handle - HKP - HKP-16536
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    HK416, MR556 Roll Pin - Charging Handle

    $7.95
    HK 416, MR556 Roll Pin for Charging Handle - HKP This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.
    $7.95
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  • New - H&K HK 416 Roll Pin For 33mm Front Folding Sight - HKP-14144
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    HK416 Roll Pin For 33mm Front Folding Sight

    H&K Heckler & Koch

    $4.95
    HK 416 Roll Pin For 33mm Front Folding Sight This version is the enhanced (longer) roll pin for a more secure fitment. 
    $4.95
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  • New - H&K HK 417/MR556/416/MR776 Pin Look Index - HKP-02639
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    HK416, HK417, MR556, MR762 Pin Look Index

    H&K Heckler & Koch

    $6.95
    H&K HK 417/MR556/416/MR776 Pin Look Index   Compatible With: HK MR556 HK 417 HK MR556  
    $6.95
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  • New - MI HK MR556/416 M-LOK Compatible 9" Carbine Handguard - HKP-18436 HK416, MR556 M-LOK Compatible 9" Carbine Handguard
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    HK416, MR556 M-LOK Compatible 9" Carbine Handguard

    MI Midwest Industries

    $229.95
    MI HK MR556/416 M-LOK Compatible 9" Carbine Handguard Features: Made in the USA Simple installation, direct replacement for HK factory handguard Retains factory barrel nut Mil-Spec top rail Seven sides of M-LOK compatible slots Lightweight, rugged 6061...
    $229.95
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  • New - Holosun 510 Series Open Reflex Sight - Picatinny Mount - HKP-21656-M Holosun 510 Series Open Reflex Sight - Picatinny Mount
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    Holosun 510 Series Open Reflex Sight - Picatinny Mount

    Holosun

    $354.95
    Holosun 510 Series Open Reflex Sight - Universal Picatinny Mount The HS510C is a versatile open reflex optic designed for long gun applications. HS510C is at home on carbines, PCCs, and shotguns due its durable design. HS510C features and aluminum...
    $354.95
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  • New - H&K HK 416 A5 & 417 Universal Tool - HKP-21621 HK416A5, HK417 Universal Tool
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    HK416A5, HK417 Universal Tool

    H&K Heckler & Koch

    $129.95
    Heckler and Koch Universal Tool for HK416A5, HK417 Genuine HK multi-tool designed for the HK416A5 and HK417. Suitable for both bench and field use, this factory tool provides the essential functions needed for routine maintenance and adjustments. Compact...
    $129.95
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