HK416 / MR5566 Small Parts

HK416 / MR5566 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 - H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier - HKP-16847
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    HK416, MR556 Roll Pin for Catch On Bolt Carrier

    H&K Heckler & Koch

    $6.95
    H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier This roll pin is used in the bolt carrier to secure the catch. Compatible With: HK MR556 HK 416
    $6.95
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  • New - H&K HK MR556/416 Ejector Port Cover Pin - HKP-02661
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    HK416, MR556 Ejector Port Cover Pin

    H&K Heckler & Koch

    $19.95
    HK MR556 & 416 Ejector Port Cover Pin Compatible With: HK MR556 HK 416
    $19.95
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  • New - HK G36, HK SL8, HK 416, HK MR556 Gas Piston - Black - HKP-14540 HK416, MR556 , HK G36, HK SL8 Gas Piston
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    HK416, MR556 , HK G36, HK SL8 Gas Piston

    USA

    $79.95
    HK G36, HK SL8, HK 416, & HK MR556 Gas Piston Complete assembly with 3X rings installed and nitrided black. Counts as one US-made compliant part for your SL8-G36 style conversion. This is one of the best parts to use on the conversion as it is one of...
    $79.95
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  • New - H&K HK 416/417/MR556/MR762 Bridge - HKP-02676 HK416, HK417, MR556, MR762  Bridge
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    HK416, HK417, MR556, MR762 Bridge

    H&K Heckler & Koch

    $24.95
    H&K HK 416/417/MR556/MR762 Bridge For Lowers Compatible With: HK MR556 HK 416 HK MR762 HK 417
    $24.95
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    New - H&K HK MR556/MR762/416 Fire Control Detent Stop Pin - HKP-15272

    HK416, MR556, MR762 Fire Control Detent Stop Pin

    H&K Heckler & Koch

    $20.95
    H&K HK MR556/MR762/416 Fire Control Detent Stop Pin HK German manufacture. Compatible With: HK MR556 HK416 HK MR762
    $20.95
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  • New - H&K HK MR556/416 Extractor Axle Pin - HKP-00040
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    HK416, MR556 Extractor Axle Pin

    H&K Heckler & Koch

    $11.95
    HK MR556 & 416 Extractor Axle Pin This factory HK German part holds the extractor in place on the bolt head. This item needs to be changed each time it is removed per HK. Compatible With: HK MR556 HK 416 M27 HK 416 A5  
    $11.95
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  • New - H&K HK MR556/416 Threaded Pin for Buttstock Insert - HKP-16604 HK416 MR556 Threaded Pin for Buttstock Insert
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    HK416 MR556 Threaded Pin for Buttstock Insert

    H&K Heckler & Koch

    $9.99
    H&K HK MR556/416 Threaded Pin for E1/E2 Buttstock Release Lever Insert New HK German manufactured E1/E2 stock release and tightening screw that takes the slack and slop out of the stock when in desired position. Compatible With: HK MR556 HK 416
    $9.99
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  • New - H&K HK MR556/MR762/416/417 Pistol Grip Screw - HKP-02679
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    HK416, HK417, MR556, MR762 Pistol Grip Screw

    H&K Heckler & Koch

    $9.95
    H&K HK MR556/MR762/416/417 Pistol Grip Screw This is the screw used to retail all battle grips/pistol grips on the HK and standard AR15 and M16 firearms. Compatible With: HK MR556 HK416 HK MR762 HK417
    $9.95
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  • New - H&K HK MR556/416 Ejector Retaining Pin - HKP-00053
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    HK416, MR556 Pin - Retaining - Ejector

    H&K Heckler & Koch

    $6.95
    H&K HK MR556/416 Ejector Retaining Pin This factory HK German part is the pin that holds the ejector in place on the bolt head. Great to have as a spare part. Compatible With: HK MR556 HK 416
    $6.95
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    New - H&K HK MR556/MR762/416/417 Disconnector Spring - Short - HKP-02675

    HK416, HK417, MR556, MR762 Disconnector Spring - Short

    H&K Heckler & Koch

    $4.95
    H&K HK MR556/MR762/416/417 Disconnector Spring - Short This is the shorter spring of the 2 found in the trigger assembly. Compatible With: HK MR556 HK 416 HK MR762 HK 417
    $4.95
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  • New - H&K HK MR556/MR762/416/417 Disconnector - HKP-02674
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    HK416, HK417, MR556, MR762 Disconnector

    H&K Heckler & Koch

    $18.95
    H&K HK MR556/MR762/416/417 Disconnector For Lower New HK German manufactured part. This is the latest generation of HK disconnector for the HK MR and HK 416/417 family of firearms. Compatible With: HK MR556 HK 416 HK MR762 HK 417 Please Note: HK...
    $18.95
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  • New - H&K HK MR556/416 Back Plate w/QD Attachment - HKP-22205 HK416, MR556 Back Plate - QD Attachment
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    HK416, MR556 Back Plate - QD Attachment

    H&K Heckler & Koch

    $64.95
    H&K HK MR556/416 Back Plate w/QD Attachment Factory HK back plate with QD socket for the HK MR556 and 416 A1/A4 models.  Compatible With: HK MR556/HK 416 (A1 and A4)
    $64.95
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