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
    HK416/MR556 Adaptive Pistol Grip with Storage - Black H&K Heckler & Koch HKP-22298 HK416/MR556 Adaptive Battle Grip with Storage - Black H&K Heckler & Koch HKP-22298
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    HK416, MR556, HK417, MR762 Pistol Grip

    H&K Heckler & Koch

    Now: $80.95
    Was: $89.99
    HK Heckler and Koch's Pistol Grip with Storage - Black HK German factory pistol grip with a storage compartment in the bottom. It has a superior fit and feel to any other grip on the market. This is a great upgrade for any AR, M16 platform. Compatible...
    HKP-22298
    Now: $80.95
    Was: $89.99
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    New - H&K HK MR556/416 Castle Nut - HKP-15230 HK416, MR556 Buffer Tube Castle Nut

    HK416, MR556 Buffer Tube Castle Nut

    H&K Heckler & Koch

    Now: $31.95
    Was: $34.95
    Heckler and Koch Castle Nut for Buffer Tube for HK416 and HK MR556 New HK German manufacture. This buffer tube castle nut will fit both mil-spec and commercial buffer tubes. All steel manufacture. With HK round tool attachment points as well as...
    HKP-15230
    Now: $31.95
    Was: $34.95
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    Was: $34.95
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  • On Sale
    HK416, MR556 Buffer Tube Wrench HK416, MR556 Buffer Tube Wrench
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    HK416, MR556 Buffer Tube Wrench

    HKP HK Parts

    Now: $26.95
    Was: $29.95
    HK MR556 & HK416 Buffer Tube Wrench The perfect metric wrench to remove and install the MR556 & HK 416 castle nuts on the buffer tube. A perfect addition to have on hand for OTB or other HK buffer tube upgrades, etc. Made from all steel, heat...
    HKP-17124
    Now: $26.95
    Was: $29.95
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    New - H&K HK MR556/416 Vented Slimline Gas Block - HKP-02660 HK416, MR556 Gas Block - Slimline - Vented
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    HK416, MR556 Gas Block - Slimline - Vented

    H&K Heckler & Koch

    Now: $131.95
    Was: $145.95
    Heckler and Koch Low Profile Complete Gas Block for HK MR556, HK416, HK German Factory slimline, low-profile gas block for the HK416 and HK MR556. This is the factory-correct gas block found on the MR556. Correct gas block to use with...
    HKP-02660
    Now: $131.95
    Was: $145.95
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    Was: $145.95
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  • Out Of Stock
    New - H&K HK MR556/416 Receiver End Plate - HKP-16603 HK416, MR556 Receiver End Plate

    HK416, MR556 Receiver End Plate

    H&K Heckler & Koch

    $24.95
    HK 416, MR556 End Plate For Receiver & Buffer Tube New HK German manufacture. Compatible With: HK MR556 & HK 416 upper receiver/buffer tubes
    HKP-16603
    $24.95
    Out Of Stock
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    $24.95
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  • Out Of Stock
    On Sale
    New - H&K HK MR556/MR762/416/417 33mm Front Folding Sight - HKP-02548 HK416, MR556, HK417, MR762 Front Folding Sight - 33mm

    HK416, MR556, HK417, MR762 Front Folding Sight - 33mm

    H&K Heckler & Koch

    Now: $134.95
    Was: $149.95
    Heckler and Koch's 33mm Front Folding Sight for HK416, MR556, HK417, MR762 HK416 Or HK MR556 Front Folding Sight. This item attaches directly to the front gas block of the HK 416, HK MR556 or HK MR762, HK417. Designed to be used in conjunction with -...
    HKP-02548
    Now: $134.95
    Was: $149.95
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    Now: $134.95
    Was: $149.95
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  • On Sale
    New - H&K HK MR556/MR762/416 Forward Assist Pin - HKP-02662 HK416, MR556, MR762 Forward Assist Pin
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    HK416, MR556, MR762 Forward Assist Pin

    H&K Heckler & Koch

    Now: $4.45
    Was: $4.95
    Heckler and Koch's Forward Assist Pin for HK416, HK MR556, and HK MR762 Compatible With: HK416, MR556 HK MR762
    HKP-02662
    Now: $4.45
    Was: $4.95
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    New - H&K HK MR556/MR762/416/417 Tactical Sling - Black - HKP-00028 HK416, MR556 Sling - Tactical - Black
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    HK416, MR556 Sling - Tactical - Black

    H&K Heckler & Koch

    Now: $98.95
    Was: $109.95
    H&K HK MR556/MR762/416/417 Tactical Sling - Black OEM HK German part. The tool is built into the HK sling hook. For the MR556 model, a sling adapter will be needed for the front attachment point as the MR556 lacks the ambi sling loop on the gas...
    HKP-00028
    Now: $98.95
    Was: $109.95
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    Was: $109.95
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  • On Sale
    New - H&K HK MR556/416 Firing Pin - HKP-00045
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    HK416, MR556 Firing Pin

    H&K Heckler & Koch

    Now: $49.95
    Was: $54.95
    H&K HK MR556/416 Firing Pin   New HK German manufactured. This is a great item to have on hand as the firing pin is one of the most abused components in the HK MR556 and HK 416 weapon systems.   Compatible With: HK MR556 HK 416 HK CR556 HK...
    HKP-00045
    Now: $49.95
    Was: $54.95
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    Now: $49.95
    Was: $54.95
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  • On Sale
    New - H&K Bungee Single Point Sling - 1250mm Long - HKP-17604 HK Bungee Single Point Sling - 1250mm Long
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    HK Bungee Single Point Sling - 1250mm Long

    H&K Heckler & Koch

    Now: $98.95
    Was: $109.95
    H&K Bungee Single Point Sling - 1250mm Long New factory HK German manufactured single point elastic "push/pull" bungee style sling. Includes the factory sling hook and is fully adjustable for the average sized mag to use. Will fit any HK application...
    HKP-17604
    Now: $98.95
    Was: $109.95
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    Was: $109.95
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  • On Sale
    New - H&K HK MR556 Front Lower Receiver Locking Pin - HKP-02663 HK416, MR556 Takedown Pin - Front - A1 Style
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    HK416, MR556 Takedown Pin - Front - A1 Style

    H&K Heckler & Koch

    Now: $58.95
    Was: $64.95
    H&K HK MR556 Front Lower Receiver Locking Pin With Spring Loaded Detent This part is the front (large) takedown pin with ball detent and locking mechanism installed. The idea behind this type of system is to decrease the movement of the upper and...
    HKP-02663
    Now: $58.95
    Was: $64.95
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    Now: $58.95
    Was: $64.95
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  • On Sale
    New - JMAC HK MP5 9mm Muzzle Device - Compatible With KeyMod Suppressors - Threaded 1/2x28 - HKP-21256 HK MP5, MP5K Muzzle Device - KeyMod Suppressor Compatible- Threaded 1/2x28 - 9mm
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    HK MP5, MP5K Muzzle Device - KeyMod Suppressor Compatible- Threaded 1/2x28 - 9mm

    JMAC Customs

    Now: $77.95
    Was: $99.95
    JMAC HK MP5 9mm Muzzle Device - Compatible With KeyMod Suppressors - Threaded 1/2x28 The360HD is the latest evolution in JMac's Custom's™ Recoil Reduction Device™ (RRD)family of muzzle brakes, designed to meet the needs of serious shooters...
    HKP-21256
    Now: $77.95
    Was: $99.95
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    Now: $77.95
    Was: $99.95
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