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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  • ALWAYS ARMED OCTO SERIES 16" 5.56 NATO 16" 5.56 NATO UPPER RECEIVER - FDE
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    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - FDE

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - FDE Made in the USA Magpul FDE Cerakote Finish Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist 15" Free Float M-LOK OCTO Series Rail 16" 1:7 Twist Barrel with Black Nitride...
    Now: $219.00
    Was: $319.00
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    Now: $219.00
    Was: $319.00
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  • ALWAYS ARMED OCTO SERIES 10.5" 5.56 UPPER RECEIVER - FDE best 10.5" 5.56 Upper receiver for any ar15 build
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    ALWAYS ARMED OCTO SERIES 10.5" 5.56 UPPER RECEIVER - FDE

    Now: $209.00
    Was: $299.00
    ALWAYS ARMED OCTO SERIES 10.5" 5.56 UPPER RECEIVER - FDE Made in the USA Magpul FDE Cerakote Finish Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist 9.25" Free Float M-LOK OCTO Series Rail 10.5" 1:7 Twist Barrel with Black Nitride...
    Now: $209.00
    Was: $299.00
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    Now: $209.00
    Was: $299.00
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  • ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH MAGPUL AFG
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    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH MAGPUL AFG

    Now: $219.00
    Was: $295.95
    Always Armed 16" 5.56 NATO Upper Receiver with Magpul AFG 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: $219.00
    Was: $295.95
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    Was: $295.95
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  • ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH STAINLESS STEEL HBAR
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    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH STAINLESS STEEL HBAR, 12" M-LOK RAIL, POP UP SIGHTS AND BIPOD FOREGRIP

    Now: $279.00
    Was: $339.00
    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH STAINLESS STEEL HBAR, 12" M-LOK RAIL, POP UP SIGHTS AND BIPOD FOREGRIP Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  16" 1:7 Twist 416R Stainless Steel HBAR...
    Now: $279.00
    Was: $339.00
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    Now: $279.00
    Was: $339.00
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  • ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - BLACK Mil Spec AR15 Rifle Upper Receiver with M-LOK Free Float Rail
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    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - BLACK

    Now: $199.00
    Was: $269.00
    ALWAYS ARMED OCTO 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" 1:7 Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Carbine Length Gas System ...
    Now: $199.00
    Was: $269.00
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    Now: $199.00
    Was: $269.00
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  • ALWAYS ARMED 7.5" 5.56 NATO FLASH CAN UPPER Mil-Spec AR-15 Pistol Upper Receiver with M-LOK Rail
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    ALWAYS ARMED 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 9.25" MLOK RAIL - BLACK

    Now: $229.00
    Was: $299.00
    ALWAYS ARMED 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 9.25" MLOK RAIL - BLACK 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...
    Now: $229.00
    Was: $299.00
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    Now: $229.00
    Was: $299.00
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  • ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 12" M-LOK RAIL
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    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 12" M-LOK RAIL, POP UP SIGHTS AND ANGLED FOREGRIP

    Now: $219.00
    Was: $329.00
    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 12" M-LOK RAIL, POP UP SIGHTS AND ANGLED FOREGRIP Made in the USA Mil-Spec 7075 T6 Nato Upper Receiver with Dust Cover and Forward Assist 16" 1:7 Twist 4150 Steel Barrel Chambered in 5.56 NATO Carbine...
    Now: $219.00
    Was: $329.00
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    Now: $219.00
    Was: $329.00
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  • ALWAYS ARMED 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER - MAGPUL FDE
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    ALWAYS ARMED 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER - MAGPUL FDE

    Now: $289.00
    Was: $319.00
    Always Armed 10.5" 5.56 NATO Flash Can Upper Receiver - Magpul FDE Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  10.5" 1:7 Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Carbine Length Gas...
    Now: $289.00
    Was: $319.00
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    Now: $289.00
    Was: $319.00
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  • Grid Defense Tactical Grape 5.56 NATO AR15 Flash Can Upper Receiver Milspec Pistol Upper Receiver in Purple Cerakote by Grid Defense
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    Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Tactical Grape

    Now: $329.00
    Was: $399.00
    Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in Purple Cerakote Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride Chambered in 5.56x45 NATO Carbine Length Gas System .750 Low Profile Gas...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • Mil-Spec AR15 Pistol Upper Receiver with 10.5" 1:7 twist barrel, 12" M-LOK rail and Flash Can Grid Defense 10.5" 5.56 NATO Upper Receiver in Tungsten Gray
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    Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Tungsten Gray

    Now: $329.00
    Was: $399.00
    Grid Defense 10.5" 5.56 Dimpled Flash Can Upper in Tungsten Gray  Finished in Tungsten Gray Cerakote Made in the USA 7075-T6 Mil-Spec 10.5" Flash Can Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride Chambered in 5.56x45 NATO...
    Now: $329.00
    Was: $399.00
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    Was: $399.00
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  • Magpul Olive Drab Green AR-15 Pistol Flash Can Upper Receiver Grid Defense 10.5" 5.56 NATO Upper Receiver in OD Green Cerakote
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    Grid Defense 10.5" 5.56 Flash Can Upper Receiver - OD Green

    Now: $329.00
    Was: $399.00
    Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in OD Green Cerakote Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride Chambered in 5.56x45 NATO Carbine Length Gas System .750 Low Profile...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • Grid Defense AR15 Pistol Upper Receiver - FDE Grid Defense AR15 Pistol Upper Receiver - FDE
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    Grid Defense 10.5" 5.56 Flash Can Upper Receiver - FDE

    Now: $329.00
    Was: $399.00
    Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in Magpul Flat Dark Earth Cerakote Made in the USA 7075-T6 Mil-Spec 5.56 Flash Can Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride Chambered in 5.56x45 NATO Carbine Length...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • 10.5" 5.56 NATO Upper Receiver by Grid Defense Grid Defense 10.5" 5.56 Blue Titanium AR15 Upper Receiver
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    Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Blue Titanium

    Now: $329.00
    Was: $399.00
    Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in Blue Titanium Cerakote Made in the USA 7075-T6 Mil-Spec 10.5" Flash Can Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride Chambered in 5.56x45 NATO Carbine Length Gas...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • Burnt Bronze 5.56 NATO Upper Receiver by Grid Defense Grid Defense AR15 5.56 Flash Can Pistol Upper Receiver
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    Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Burnt Bronze

    Now: $329.00
    Was: $399.00
    Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in Burnt Bronze Cerakote Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride Chambered in 5.56x45 NATO Carbine Length Gas System .750 Low...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • Black Anodized Pistol Upper Receiver Chambered in 5.56 NATO - Grid Defense Milspec AR 15 Pistol Upper Receiver by Grid Defense
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    Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Black Anodized

    Now: $329.00
    Was: $399.00
    Grid Defense 10.5" 5.56 Flash Can Upper Receiver Hard Coat Black Anodized Finish Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride Chambered in 5.56x45 NATO Carbine Length Gas System .750 Low Profile...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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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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    Now: $329.00
    Was: $399.00
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  • AR15 7.5" 5.56 Flash Can Upper Receiver - Burnt Bronze Grid Defense Mil-Spec Burnt Bronze AR 15 Upper Receiver with 7.5" 1:7 Twist 5.56 M4 Barrel, 9" M-Lok Rail and Dimpled Flash Can
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    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Burnt Bronze

    Now: $329.00
    Was: $399.00
    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Burnt Bronze Finished in Burnt Bronze Cerakote Mil-spec 7075-T6 5.56 Flash Can Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 9" Grid Defense Octagon M-Lok Rail Pistol Length Gas System...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • Mil Spec Grid Defense Blue Titanium Flash Can Upper Receiver with 9" M-Lok Rail and 7.5" 5.56 NATO Barrel. AR15 7.5" 5.56 Flash Can Upper Receiver by Grid Defense in Blue Titanium Cerakote
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    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Blue Titanium

    Now: $329.00
    Was: $399.00
    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Blue Titanium  Finished in Blue Titanium Cerakote Made in the USA 1:7 Twist 7.5" 4150 M4 Barrel - Black Nitride 9" Octagon M-Lok Hand Guard Dimpled Flash Can 7075-T6 Mil Spec Upper Receiver...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • Milspec Grid Defense AR-15 Upper Receiver with 7.5" 5.56 barrel, 9" rail and dimpled flash can finished in Magpul Flat Dark Earth FDE AR15 Grid Defense 7.5" 5.56 NATO Flash Can Upper Receiver
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    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - FDE

    Now: $329.00
    Was: $399.00
    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - FDE Finished in Magpul Flat Dark Earth Cerakote 7075-T6 Mil-Spec 5.56 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO 9" Octagon M-Lok Handguard Dimpled Flash...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • Magpul OD Green AR15 5.56 Flash Can Upper Receiver with 7.5" barrel and 9" rail by Grid Defense Magpul OD Green AR15 5.56 Flash Can Upper Receiver with 7.5" barrel and 9" rail by Grid Defense
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    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - OD Green

    Now: $329.00
    Was: $399.00
    Grid Defense OD Green 7.5" 5.56 Flash Can Upper  Finished in Magpul Olive Drab Green Cerakote 7075-T6 Mil Spec Upper Receiver Chambered in 5.56x45 NATO 1:7 Twist 7.5" 4150 M4 Barrel - Black Nitride 9" Grid Defense Octagon M Lok Rail Dimpled Flash...
    Now: $329.00
    Was: $399.00
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