5.56mm Uppers

5.56mm Uppers

AR15 Upper receivers in 556 NATO available in 16", 10.5" and 7.5" lengths for your next build. Check out our AR-15 Uppers in Cerakote colors like FDE and Burnt Bronze. Please keep in mind these are the standard 5.56x45 Nato upper receivers and can use 5.56 or .223 ammo. If you are looking for something a little different than your standard rifle upper make sure you checkout the pistol upper receivers we offer and keep an eye out for new uppers and cerakote colors.

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  • 7.5" 5.56 NATO Grid Defense AR15 Flash Can Upper Receiver with 9" M-Lok Rail Milspec AR-15 Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Black Anodized
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    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Black Anodized

    Now: $329.00
    Was: $399.00
    Grid Defense 7.5" 5.56 NATO Flash Can Upper - Black Anodized Hard Coat Black Anodized Finish Mil-spec 7075-T6 Black 5.56 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO 9" Grid Defense Octagon M-Lok Rail Dimpled...
    Now: $329.00
    Was: $399.00
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  • 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 10" MLOK HAND GUARD 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 10" MLOK HAND GUARD
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    7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 10" MLOK HAND GUARD

    Now: $209.00
    Was: $299.00
    7.5" 5.56 NATO Flash Can Upper Receiver With 10" MLOK Hand Guard Made in the USA Mil Spec 7075 T6 Upper Receiver 7.5" 4150 Steel Barrel with Black Nitride Finish Chambered in 5.56 NATO 10" Free Floating MLOK Hand Guard Pistol Length Gas System 7...
    Now: $209.00
    Was: $299.00
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    Now: $209.00
    Was: $299.00
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  • Hard Coat Black Anodized 16" 556 NATO Upper Receiver AR-15 Upper 16" with 1:7 Twist Barrel and M-LOK Hand Guard
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    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER - ENGRAVED

    Now: $199.00
    Was: $289.00
    Always Armed 16" 5.56 NATO Upper Receiver - Black Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  16" 1:7  Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Carbine Length Gas System ...
    Now: $199.00
    Was: $289.00
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    Was: $289.00
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  • ALWAYS ARMED 7.5" 5.56 NATO COMPLETE STAINLESS STEEL UPPER RECEIVER - BLACK ANODIZED Shop this Complete AR-15 Upper Receiver to start your next 5.56 build
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    ALWAYS ARMED 7.5" 5.56 NATO COMPLETE STAINLESS STEEL UPPER RECEIVER WITH BCG/CH/ENHANCED FLASH HIDER - BLACK ANODIZED

    Now: $269.00
    Was: $469.00
    ALWAYS ARMED 7.5" 5.56 NATO COMPLETE STAINLESS STEEL UPPER RECEIVER - BLACK ANODIZED Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  7.5" 1:7 Twist 416R Stainless Steel Barrel Chambered in 5.56 NATO Pistol...
    Now: $269.00
    Was: $469.00
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    Now: $269.00
    Was: $469.00
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  • ALWAYS ARMED ULTRALIGHT SERIES 16" 5.56 NATO UPPER RECEIVER WITH 15" HAND GUARD - BLACK Get the best lightweight upper there is with the full picatinny compatibility and featherweight design
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    ALWAYS ARMED ULTRALIGHT SERIES 16" 5.56 NATO UPPER RECEIVER WITH 15" HAND GUARD - BLACK

    Now: $199.00
    Was: $339.00
    ALWAYS ARMED ULTRALIGHT SERIES 16" 5.56 NATO UPPER RECEIVER - BLACK Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  16" Pencil Profile 4150 Steel Barrel with Black Nitride Finish Chambered in 5.56 NATO Mid...
    Now: $199.00
    Was: $339.00
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    Was: $339.00
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  • 10.5" Mil Spec Upper Receiver | AR15 Carbine Length Gas System | M-LOK Rail | 5.56 NATO
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    GRID DEFENSE GX2 10.5" 5.56 UPPER RECEIVER - BLACK

    Now: $329.00
    Was: $379.00
    Grid Defense GX2 10.5" 5.56 Upper Receiver Hard Coat Black Anodized Chambered in 5.56x45 NATO 7075-T6 Milspec Upper Receiver 10.5" 1:7 Twist 4150 Steel M4 Barrel - Black Nitride .750 Low Profile Gas Block Carbine Length Gas System 9" Grid Defense GX2...
    Now: $329.00
    Was: $379.00
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    Now: $329.00
    Was: $379.00
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  • ALWAYS ARMED 7.5" 5.56 NATO COMPLETE UPPER WITH BCG/CHARGING HANDLE - BLACK ANODIZED Most Accurate Black Anodized Pistol Upper Receiver
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    ALWAYS ARMED 7.5" 5.56 NATO COMPLETE UPPER WITH BCG/CHARGING HANDLE - BLACK ANODIZED

    Now: $229.00
    Was: $349.00
    Always Armed 7.5" 5.56 NATO Complete Upper Receiver - Black Anodized Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  7.5" 1:7 Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Pistol Length...
    Now: $229.00
    Was: $349.00
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    Now: $229.00
    Was: $349.00
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