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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  • On Sale
    New - B&T HK 416 3 Prong Flash Hider - 1/2x28 - HKP-22216 HK416, MR556 Flash Hider - 3 Prong - Threaded 1/2x28
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    HK416, MR556 Flash Hider - 3 Prong - Threaded 1/2x28

    B&T Brugger & Thomet

    Now: $89.95
    Was: $100.00
    Brugger and Thomet Assault 3 Prong Flash Hider - 1/2x28 3-Prong muzzle device with 1/2x28 threading, designed to reduce muzzle flash and improve shooting performance. Features: High performance open tine hybrid Precision machined, DLC...
    HKP-22216
    Now: $89.95
    Was: $100.00
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  • On Sale
    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

    Now: $35.95
    Was: $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
    Now: $35.95
    Was: $39.95
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  • Out Of Stock
    New - H&K MR556 A4/416 A5 Gas Block Spring - HKP-22060 HK416 A5, MR556 A4 Gas Block Spring

    HK416 A5, MR556 A4 Gas Block Spring

    H&K Heckler & Koch

    $19.95
    HK Heckler and Koch HK416 A5, MR556 A4 Gas Block Spring German-made gas block spring for the HK MR556 A4 and HK416 A5. Compatible With: MR556 A4 HK416 A5
    HKP-22060
    $19.95
    Out Of Stock
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    $19.95
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  • On Sale
    New - Magpul MOE Stock MIL Spec - Black - HKP-19393
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    HK416, MR556, AR-15 Stock - MOE - MIL Spec

    Magpul

    Now: $40.95
    Was: $44.95
    Magpul MOE Stock MIL SPEC Magpul Industries MOE Carbine Black Stock Complete - MIL Spec Compatible With: MR556 & HK 416 equipped with mil-spec buffer tubes AR-15 platforms with mil-spec buffer tubes
    HKP-19393
    Now: $40.95
    Was: $44.95
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  • On Sale
    New - H&K HK MR556/416 Full Auto Hammer - HKP-02673
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    HK416, MR556 Hammer, Complete - Semi Auto

    H&K Heckler & Koch

    Now: $97.95
    Was: $107.95
    H&K HK416, MR556 Semi-Auto Hammer - Complete Genuine German complete hammer and spring assembly.  Includes: Semi-auto hammer Hammer spring Side bushing Compatible With: MR556A1 MR556 A4 HK416 AR-15 AR-15 style semi-auto firearms chambered in...
    HKP-02673
    Now: $97.95
    Was: $107.95
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    Was: $107.95
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  • On Sale
    New - Super Slim Picatinny Riser Mount - 4 Slots - BLEMISHED - HKP-99229-M Picatinny Riser Mount - Super Slim - 4 Slots - BLEMISHED
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    Picatinny Riser Mount - Super Slim - 4 Slots - BLEMISHED

    Other

    Now: $26.21
    Was: $49.95
    Super Slim Picatinny Riser Mount - 4 Slots - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The slim Picatinny riser mount is offered in two clamp...
    HKP-99229-M
    Now: $26.21
    Was: $49.95
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    Was: $49.95
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  • On Sale
    New - H&K HK MR556/MR762/416/417 Long Disconnector Spring - HKP-16774
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    HK416, HK417, MR556, MR762 Long Disconnector Spring

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    H&K HK MR556/MR762/416/417 Long Disconnector Spring HK German manufactured disconnector spring. This is the longer of the 2 springs found in the trigger/sear assembly. Compatible With: HK MR556 HK 416 HK MR762 HK 417
    HKP-16774
    Now: $8.95
    Was: $9.95
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  • New - HKP HK MR556/416 10.4" 5.56 Barrel - HKP-18200 HK416, MR556 Barrel - 5.56 / .223 - 10.4" - Threaded 1/2x28
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    HK416, MR556 Barrel - 5.56 / .223 - 10.4" - Threaded 1/2x28

    HKP HK Parts

    $369.95
    MR556 & HK416 Barrel - 10.4"- US Made - Threaded 1/2x28 Finally an answer for all of those that have been wanting a 10.4" 416 or MR556 barrel option for your MR556, CR556 & HK 416's. Each barrel is as close as you can get for those that want a HK...
    HKP-18200
    $369.95
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  • On Sale
    New - H&K HK MR556/MR762/416/417 Eyelet Sling Adapter - RAL 8K - HKP-18855 HK416, MR556, HK417, MR762 Eyelet Sling Adapter - RAL8000
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    HK416, MR556, HK417, MR762 Eyelet Sling Adapter - RAL8000

    H&K Heckler & Koch

    Now: $149.95
    Was: $165.99
    Heckler and Koch HK416, MR556, HK417, MR762 Eyelet Sling Adapter - RAL 8K New German HK Factory Eyelet Sling Adapter for Carrying Slings. Compatible With: HK416, MR556 HK417, MR762 HK G28
    HKP-18855
    Now: $149.95
    Was: $165.99
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    Was: $165.99
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  • On Sale
    New - Heckler and Koch HK416 and HK417 Pistol Grip and Tool - Black - HKP-22208 HK416, MR556, HK417, MR762 Pistol Grip - Tool Included
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    HK416, MR556, HK417, MR762 Pistol Grip - Tool Included

    H&K Heckler & Koch

    Now: $143.95
    Was: $159.95
    HK Heckler and Koch's Pistol Grip with tool - Black Factory German pistol grip in black.  Compatible With: HK416, MR556 HK417, MR762 M27 G28 AR-15, M4, & M16 Platforms  
    HKP-22208
    Now: $143.95
    Was: $159.95
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    Was: $159.95
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  • Out Of Stock
    New - Trijicon RMR/SRO 45° Rail Offset Adapter - HKP-20336 RMR, SRO Adapter - 45° - Rail Offset

    RMR, SRO Adapter - 45° - Rail Offset

    Trijicon

    $91.45
    Trijicon RMR/SRO 45° Rail Offset Adapter Perfect for that situation where you need the versatility of a magnified optic paired with a Trijicon RMR or SRO red dot sight in close quarters. This offset rail adapter attaches to the firearm's picatinny...
    HKP-20336
    $91.45
    Out Of Stock
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    $91.45
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  • New - HK MR556/416 10.5" Super Modular Rail System - FDE - HKP-16460 HK416, MR556 Rail System - 10.5" - Super Modular - FDE
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    HK416, MR556 Rail System - 10.5" - Super Modular - FDE

    Geissele

    $499.95
      Geissele HK416, MR556 10.5" Modular Rail - Desert Dirt Color (DDC) 9.7 " Extended HK 416 free float rail for use with all HK 416 & MR556 uppers.Please note: On the HK416 models the sling attachment point on the gas block will need to be...
    HKP-16460
    $499.95
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