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 TR SERIES 16" 5.56 NATO UPPER RECEIVER WITH 12" RAIL - BURNT BRONZE 12" Free Float M-LOK Hand Rail
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    ALWAYS ARMED TR SERIES 16" 5.56 NATO UPPER RECEIVER WITH 12" RAIL - BURNT BRONZE

    Now: $219.00
    Was: $299.00
    ALWAYS ARMED TR SERIES 16" 5.56 NATO UPPER RECEIVER WITH 12" RAIL - BURNT BRONZE Made in the USA Mil-Spec 7075 T6 Magpul Upper Receiver with Dust Cover and Forward Assist 16" 1:7 Twist 4150 Black Nitride Barrel Chambered in 5.56 NATO Carbine Length Gas...
    Now: $219.00
    Was: $299.00
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    Now: $219.00
    Was: $299.00
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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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  • AR15 Tungsten Gray 7.5" 5.56 Flash Can Upper Receiver with 9" M-lok Rail Mil Spec Grid Defense 7.5" 5.56 NATO Upper Receiver with 9" Handguard and Dimpled Flash Can in Tungsten Gray Cerakote
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    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Tungsten Gray

    Now: $329.00
    Was: $399.00
    Grid Defense 7.5" 5.56 Flash Can Upper - Tungsten Gray Finished in Tungsten Gray Cerakote 7075-T6 MilSpec Upper Receiver 7.5" 1:7 Twist 4150 Barrel - Black Nitride Chambered in 5.56x45 NATO Dimpled Flash Can 9" M-lok Octagon Rail Pistol Length Gas...
    Now: $329.00
    Was: $399.00
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  • VETERAN'S DAY 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 9" BX SERIES RAIL - BLACK US COAST GUARD
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    US MILITARY 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 9" BX RAIL - BLACK

    Now: $229.00
    Was: $299.00
    VETERAN'S DAY 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 9" MLOK RAIL - BLACK Hard Coat Black Anodized Finish Mil-Spec AR15 Upper Receiver Mil-Spec Forward Assist  Laser Engraved Dust Cover 9" BX Series Free Float M-LOK Rail 7.5" 1:7 Twist 4150...
    Now: $229.00
    Was: $299.00
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    Now: $229.00
    Was: $299.00
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  • ALWAYS ARMED 10.5" 5.56 NATO UPPER WITH FDE FLASH CAN - BLACK Get this upper receiver for your next build including a flash can to keep the gas and blast off your face.
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    ALWAYS ARMED 10.5" 5.56 NATO UPPER WITH FDE FLASH CAN - BLACK

    Now: $239.00
    Was: $329.00
    ALWAYS ARMED 10.5" 5.56 NATO FLAHS CAN UPPER RECEIVER 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 System ...
    Now: $239.00
    Was: $329.00
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    Now: $239.00
    Was: $329.00
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  • Mil-Spec AR15 Upper Receiver with Carbine Length Gas System
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    ALWAYS ARMED 16" 5.56 MAKO UPPER RECEIVER - TEQUILA SUNRISE

    $319.00
    ALWAYS ARMED 16" 5.56 MAKO UPPER RECEIVER Made in the USA Mil-Spec 7075 T6 5.56 Mako 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 .750 Low...
    $319.00
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    $319.00
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  • ALWAYS ARMED 7.5" 5.56 BLACK UPPER RECEIVER BAZOOKA GREEN HANDRAIL
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    ALWAYS ARMED 7.5" 5.56 BLACK UPPER RECEIVER BAZOOKA GREEN HANDRAIL

    Now: $199.00
    Was: $289.00
    ALWAYS ARMED 7.5" 5.56 BLACK UPPER RECEIVER BAZOOKA GREEN HANDRAIL Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist Upper Finished in Hard Coat Black Anodize 7.5" 1:7 Twist 4150 Barrel with Black Nitride Finish...
    Now: $199.00
    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 7.5" 5.56 NATO TR SERIES UPPER RECEIVER - MAGPUL FDE This Upper is chambered in 5.56 NATO and ready for use in CQB with is it's short 7.5" barrel
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    ALWAYS ARMED 7.5" 5.56 NATO TR SERIES UPPER RECEIVER - MAGPUL FDE

    Now: $209.00
    Was: $299.00
    Always Armed 7.5" 5.56 NATO TR Series Upper Receiver - Magpul FDE 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: $209.00
    Was: $299.00
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    Was: $299.00
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  • Mil Spec AR15 Upper Receiver | Burnt Bronze Cerakote | 5.56 NATO
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    ALWAYS ARMED LIMITED EDITION 10.5" 5.56 NATO FLASH CAN UPPER WITH STRIKE INDUSTRIES & TIMBER CREEK ACCESSORIES - BURNT BRONZE

    $386.94
    Always Armed 10.5" 5.56 NATO Flash Can Upper Receiver - Burnt Bronze 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...
    $386.94
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    $386.94
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  • Always Armed | Limited Edition Upper | 5.56 NATO 10.5" 1:7 Twist 4150 Barrel | Strike Industries
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    Always Armed Smith & Wesson Red Limited Edition 10.5" 5.56 NATO Upper Receiver with Blue Strike Industries Accessories

    $541.84
    Always Armed Smith & Wesson Red Limited Edition 10.5" 5.56 NATO Upper Receiver 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 in 5.56 NATO...
    $541.84
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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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    Now: $199.00
    Was: $339.00
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  • Andro Corp 10.5" 5.56 Front Sight Upper Receiver - Black Shop this M4 style Upper Receiver for your next A2 Upper Receiver build
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    Andro Corp 10.5" 5.56 Front Sight Upper Receiver - Black

    Now: $299.00
    Was: $429.00
    Andro Corp 10.5" 5.56 Front Sight Upper Receiver - Black Made in the USA 10.5" 5.56 NATO Barrel 1:8 Twist Rate 1/2x28 TPI Thread Pitch 7075-T6 Mil-Spec Upper Receiver M4 Handguard Carbine Length Gas System A2 Muzzle Device Black Anodized Mil...
    Now: $299.00
    Was: $429.00
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    Now: $299.00
    Was: $429.00
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  • Andro Corp 5" 5.56 Upper Receiver - Black This upper receiver designed by Andro Corp Industries is the best start to a short 5.56 build. Whether it's suppressed or not this short upper place plenty of punch
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    Andro Corp 5" 5.56 Upper Receiver - Black

    Now: $350.00
    Was: $415.00
    Andro Corp 5" 5.56 Upper Receiver - Black 4150 CMV Melonite 1:5 Twist Rate M4 Feed Ramps Micro Length Gas System .750 Low Profile Gas Block QPQ Corrosion Resistant Finish A2 Flash Hider 1/2x28 Threaded Muzzle 5" M-LOK Hand Guard 7075-T6...
    Now: $350.00
    Was: $415.00
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    Now: $350.00
    Was: $415.00
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  • GHOST 16" 5.56 BLUT TITANIUM UPPER RECEIVER WITH 14" TUNGSTEN GRAY M-LOK RAIL 16" 5.56 NATO 4150R BARREL
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    GHOST 16" 5.56 BLUE TITANIUM UPPER RECEIVER WITH 14" TUNGSTEN GRAY M-LOK RAIL

    Now: $259.00
    Was: $329.00
    GHOST 16" 5.56 NATO UPPER RECEIVER Chambered in 5.56 NATO 7075 T6 Forged Aluminum Mil-Spec AR15 Upper Receiver - Blue Titanium A2 Birdcage Flash Hider 16" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System Ghost Firearms Tungsten Gray 14"...
    Now: $259.00
    Was: $329.00
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    Now: $259.00
    Was: $329.00
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  • AR 15 Pistol Upper Receiver | 10.5" Barrel | 1:7 Twist Rate Mil Spec | 12" M-LOK Hand Guard | Dimpled Flash Can
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    Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Pink Champagne

    Now: $329.00
    Was: $399.00
    Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in Pink Champagne Cerakote 5.56 Upper Receiver 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...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • 10.5" 5.56 1:7 Twist Barel Tungsten Gray Milspec Pistol Upper Receiver with 9" MLOK Compatible Hand Guard
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    Grid Defense 10.5" 5.56 Upper Receiver - Tungsten Gray

    Now: $329.00
    Was: $379.00
    Grid Defense 10.5" 5.56 Upper Receiver Finished in Tungsten Gray Cerakote 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 A2 Flash Hider...
    Now: $329.00
    Was: $379.00
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    Now: $329.00
    Was: $379.00
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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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  • 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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  • 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
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