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 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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    Was: $299.00
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  • Aero Precision 16" 5.56 NATO Upper Receiver - FDE Aero Precision 16" 5.56 NATO Upper Receiver - FDE
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    Aero Precision 16" 5.56 NATO Upper Receiver - FDE

    $695.00
    Aero Precision 16" 5.56 NATO Upper Receiver - FDE M4E1 Threaded Assembled Upper Receiver ATLAS S-ONE M-LOK Handguard of choice 16" 5.56 CMV Barrel Low Profile Gas Block and Mid-Length Gas Tube Product comes assembled This complete upper does not...
    $695.00
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    $695.00
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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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  • 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 16" 5.56 NATO Upper Receiver - Federal Standard Green FS Green matches military standard green 34094 used by the US Military.
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    ALWAYS ARMED 16" 5.56 NATO Upper Receiver - Federal Standard Green

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED 16" 5.56 NATO Upper Receiver - Federal Standard Green Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Rail Finished in Federal Standard Green Cerakote Carbine Length Gas System A2 Muzzle Device 1:7...
    Now: $219.00
    Was: $319.00
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    Now: $219.00
    Was: $319.00
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  • Always Armed 18" 5.56 NATO Rifle Length Gen 1 Upper Receiver Always Armed 18" 5.56 NATO Rifle Length Gen 1 Upper Receiver
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    Always Armed 18" 5.56 NATO Rifle Length Gen 1 Upper Receiver

    $189.00 - $219.00
    Always Armed 18" 5.56 NATO Upper Receiver Upper Specifications Mil-Spec Upper Design Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 15" Free Float OEM Handguard Design Available in Hard Coat Black...
    $189.00 - $219.00
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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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    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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    Was: $339.00
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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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  • 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
    Was: $399.00
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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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  • AR15 Rifle Upper Receiver | Strike Industries Billet Dust Cover 16" 5.56 NATO | Mil Spec Upper | Periwinkle Cerakote
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    Grid Defense Limited Edition 16" 5.56 NATO Upper with Strike Industries Accessories - Periwinkle/Blue

    $502.85
    Grid Defense 16" 5.56 Upper Receiver - Periwinkle Periwinkle Cerakote Finish Chambered in 5.56x45 NATO 14" M-Lok Rail 16" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System A2 Flash Hider Mil-Spec 7075-T6 Upper Receiver Strike Industries...
    $502.85
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    $502.85
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  • TUNGSTEN GRAY CERAKOTE | .556 NATO | AR-15 GRID DEFENSE | PISTOL LENGTH GAS SYSTEM | 7" M-LOK HAND GUARD
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    Grid Defense Stainless Steel 7.5" 5.56 Upper Receiver With Free MBUS Sights - Tungsten Gray

    $496.50
    Grid Defense Stainless Steel 7.5" 5.56 Upper Receiver Tungsten Gray Cerakote Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 7.5" 1:7 Twist 416R Stainless Steel Barrel - M4 Profile Pistol Length Gas System Grid Defense 7" M-Lok Free Float...
    $496.50
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    $496.50
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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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