HK416 / MR566 Small Parts

HK416 / MR566 Small Parts

Our selection includes every essential small part for your HK MR556 or HK416 rifle – pins, springs, detents, gas rings, firing pins, and more.

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  • New - Magpul M-LOK 5 Slot Rail Section - HKP-19568 M-LOK Rail Section - 5 Slot
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    M-LOK Rail Section - 5 Slot

    Magpul

    $18.95
    Magpul M-LOK 5 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...
    HKP-19568
    $18.95
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  • New - H&K HK MR556/MR762/416 Buffer Retainer Pin - HKP-12704
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    HK416, MR556, MR762 Buffer Retainer Pin

    H&K Heckler & Koch

    $3.95
    Heckler and Koch HK416, HK MR556, HK MR762 Buffer Retainer Pin Compatible With: HK416, MR556 HK MR762
    HKP-12704
    $3.95
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    $3.95
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  • New - H&K HK MR556/416 Ejection Port Cover - Black - HKP-15229 HK416, MR556 Ejection Port Cover
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    HK416, MR556 Ejection Port Cover

    H&K Heckler & Koch

    $55.95
    H&K HK MR556/416 Ejection Port Cover HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556. This item can also be used on other AR15-style projects to enhance the project with the finest ejection port cover...
    HKP-15229
    $55.95
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  • HK416 A5, MR556 A4 Gas Vent Screws - 1.0-2.5mm
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    HK416 A5, MR556 A4 Gas Vent Screws - 1.0-2.5mm

    H&K Heckler & Koch

    $31.99
    H&K MR556 A4 and HK416 A5 Gas Vent Screws German gas vent screw for MR556 A4 gas block. Specifications: Factory reference: 1.3mm is the common factory vent screw size for MR556 A4 Sizing reminder: Larger mm equals more venting, Smaller mm equals...
    HKP-22470-M
    $31.99
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  • New - H&K HK MR556/MR762/416/417 Buffer Retaining Pin - HKP-02544
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    HK416, MR556, HK417, MR762 Buffer Retaining Pin

    H&K Heckler & Koch

    $15.95
    Heckler and Koch HK MR556, HK MR762, 416/417 Buffer Retaining Pin New HK German proprietary HK designed buffer pin unique to the HK 416 and MR 556 series.  Compatible With: HK416, MR556 HK MR762 HK M27
    HKP-02544
    $15.95
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    New - H&K HK MR556/416 Sling Loop Backplate - Ambidextrous - HKP-17151 HK416, MR556 Sling Loop Backplate - Ambidextrous

    HK416, MR556 Sling Loop Backplate - Ambidextrous

    H&K Heckler & Koch

    $29.95
    H&K HK MR556/416 Sling Loop Backplate - Ambidextrous Genuine HK German manufactured 416, MR556 new style backplate with sling loop. Compatible With: HK MR556, HK 416 buffer tubes All Standard AR-15, M4 & M16 buffer tubes
    HKP-17151
    $29.95
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  • New - H&K HK MR556/MR762/416/417 Takedown Pin Detent Spring - HKP-02541
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    HK416, MR556, HK417, MR762 Takedown Pin Detent Spring

    H&K Heckler & Koch

    $9.95
    H&K HK MR556/MR762/416/417 Takedown Pin Detent Spring New HK German manufacture. Detent spring for the rear takedown pin. Compatible With: HK MR556 HK 416 HK MR762 HK 417
    HKP-02541
    $9.95
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  • New - HK MR556/MR762/416/HK417 Buffer Retainer Spring - HKP-20036
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    HK416, MR556, HK417, MR762 Buffer Retainer Spring

    USA

    $5.95
    HK MR556/MR762/416/HK417 Buffer Retainer Spring This item is the spring for the buffer retainer that is held in the rear of the lower receiver. Compatible With: HK MR556 HK 416 HK MR762 HK 417
    HKP-20036
    $5.95
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  • New - H&K HK MR556/MR762/416 Clamping Sleeve Safety Lever - HKP-15252
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    HK416, MR556, MR762 Clamping Sleeve Safety Lever

    H&K Heckler & Koch

    $7.95
    H&K HK MR556/MR762/416 Clamping Sleeve Safety Lever There are one of the same pin on both sides. Compatible with: HK MR556 HK 416 HK MR762
    HKP-15252
    $7.95
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  • New - H&K MR556/MR762/416/G36 (5.56/.223) & (7.62x51/.308) Extractor Spring - HKP-00288
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    HK416, MR556, MR762, G36 Extractor Spring

    H&K Heckler & Koch

    $8.95
    H&K MR556/MR762/416/G36 (5.56/.223) & (7.62x51/.308) Extractor Spring   A must-have replacement wear part and a great item to have on hand. Compatible With: HK G36 HK G36K HK G36C HK SL8 HK MR556 HK 416 HK MR762
    HKP-00288
    $8.95
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  • New - H&K HK MR556/416 Ejection Door Lock Bolt Pin - HKP-02536
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    HK416, MR556 Ejection Door Lock Roll Pin

    H&K Heckler & Koch

    $4.95
    Heckler and Koch HK416 and HK MR556 Ejection Door Lock Bolt or Roll Pin Compatible With: HK416 A1, A3, A5 HK MR556 A1, A4
    HKP-02536
    $4.95
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  • Out Of Stock
    New - H&K HK 416 Full Auto Ambidextrous 3-Position Selector Lever Kit - HKP-17552 HK416 Selector Lever Kit - Full Auto - Ambidextrous - 3-Position

    HK416 Selector Lever Kit - Full Auto - Ambidextrous - 3-Position

    H&K Heckler & Koch

    $139.95
    HK416 Full Auto Ambi Selectors Kit - German HK Each set comes complete with everything you will need to upgrade your HK 416 to an ambi selector lever set up. Factory correct German HK and all steel construction. Includes: 2 X selector levers 2 X roll...
    HKP-17552
    $139.95
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    $139.95
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