5.56mm Uppers

5.56mm Uppers

Discover high-performance 5.56 upper receivers for your AR-15 at Always Armed. Our Cerakote-finished 5.56 NATO AR-15 uppers offer accuracy, durability, and style. Shop the best AR-15 upper receivers for rifle and pistol builds today.

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  • AR15 Upper Receiver | Hard Coat Black Anodized Rifle Upper Chambered in 5.56 NATO | Mil Spec
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    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER WITH STAINLESS STEEL BARREL AND AXE BRAKE - BLACK

    $299.00
    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER Made in the USA Hard Coat Black Anodized Finish Mil-Spec 7075 T6 5.56 Nato Upper Receiver with Dust Cover and Forward Assist 15" Free Float M-LOK OCTO Series Rail 16" 1:7 Twist 416R Stainless Steel...
    $299.00
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    $299.00
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  • Ghost Elite 16" Upper 5.56 NATO - Black
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    Ghost Elite 16" Upper 5.56 NATO - Black

    Now: $249.00
    Was: $299.00
    Ghost Firearms 16" 5.56 NATO Upper Receiver - Black Mil-Spec 7075 Forged Aluminum Black 16" Nato Upper Receiver 14" Ghost Firearms M-Lok Rail Black Anodized Finish 16" 1:7 Twist 4150 M4 Barrel - Black Nitride A2 Birdcage Muzzle Device Carbine Length Gas...
    Now: $249.00
    Was: $299.00
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    Now: $249.00
    Was: $299.00
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  • AR15 16" 5.56/.223 Upper Receiver in Tungsten Gray by Grid Defense Grid Defense AR-15 Milspec 16" 5.56 NATO Upper Receiver in Tungsten Gray
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    Grid Defense 16" 5.56 Upper Receiver - Tungsten Gray

    Now: $329.00
    Was: $399.00
    Grid Defense 16" 5.56 Upper Receiver - Tungsten Gray  Tungsten Gray 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
    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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  • 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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    Now: $329.00
    Was: $399.00
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  • Grid Defense AR15 5.56 Upper | GX2 7.5" 5.56/.223 Upper Receiver | Mil Spec | Black Anodized
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    Grid Defense GX2 7.5" 5.56 Flash Can Upper Receiver - Black Anodized

    Now: $329.00
    Was: $399.00
    Grid Defense GX2 7.5" 5.56 NATO Flash Can Upper Mil-Spec 7075-T6 7.5" Flash Can Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO 9" Grid Defense GX2 Octagon M-Lok Rail Dimpled Flash Can  Pistol Length Gas...
    Now: $329.00
    Was: $399.00
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    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 FLASH CAN UPPER RECEIVER - SNIPER GRAY Flash Can Upper receiver with 1:7 twist barrel
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    ALWAYS ARMED 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER - SNIPER GRAY

    Now: $229.00
    Was: $319.00
    Always Armed 10.5" 5.56 NATO Flash Can Upper Receiver - Sniper Gray 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: $229.00
    Was: $319.00
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    Now: $229.00
    Was: $319.00
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  • ALWAYS ARMED 7.5" 5.56 NATO BX SERIES UPPER RECEIVER - BLACK ANODIZED
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    ALWAYS ARMED 7.5" 5.56 NATO BX SERIES UPPER RECEIVER - BLACK ANODIZED

    Now: $179.00
    Was: $279.00
    ALWAYS ARMED 7.5" 5.56 NATO BX SERIES 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...
    Now: $179.00
    Was: $279.00
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    Now: $179.00
    Was: $279.00
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  • Always Armed Jester 16" 5.56 Nato Stainless Steel Upper Receiver 16" 1:7 Twist 5.56 Nato Barrel
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    ALWAYS ARMED Jester 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLACK

    $299.00
    ALWAYS ARMED Jester 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLACK Made in the USA Mil-Spec 7075 T6 5.56 Nato Upper Receiver with Dust Cover and Forward Assist  16" 1:7  Twist 416R Stainless Steel Barrel Chambered in 5.56 NATO...
    $299.00
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    $299.00
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  • ALWAYS ARMED OCT2 SERIES 16" 5.56 NATO MID LENGTH UPPER RECEIVER - BLACK Mil Spec AR15 Rifle Upper Receiver with M-LOK Free Float Rail
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    ALWAYS ARMED OCT2 SERIES 16" 5.56 NATO MID LENGTH UPPER RECEIVER - BLACK

    Now: $209.00
    Was: $269.00
    ALWAYS ARMED OCT2 SERIES 16" 5.56 NATO MID LENGTH 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 Mid Length Gas...
    Now: $209.00
    Was: $269.00
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    Now: $209.00
    Was: $269.00
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  • ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - SIG PINK SIG PINK | 7.5" 5.56 NATO BARREL
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    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - SIG PINK

    Now: $209.00
    Was: $299.00
    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - SIG PINK Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist 7" Free Float M-LOK OCTO Series Rail 7.5" 1:7 Twist Barrel with Black Nitride Finish A2 Flash Hider Finished in Sig...
    Now: $209.00
    Was: $299.00
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    Now: $209.00
    Was: $299.00
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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 FIREARMS 10.5" 5.56 BURNT BRONZE UPPER RECEIVER 9" GHOST FIREARMS M-LOK HAND GUARD
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    GHOST 10.5" 5.56 BURNT BRONZE UPPER RECEIVER WITH 9" FDE M-LOK RAIL

    Now: $259.00
    Was: $329.00
    GHOST 10.5" 5.56 NATO UPPER RECEIVER Chambered in 5.56 NATO 7075 T6 Forged Aluminum Mil-Spec AR15 Upper Receiver - Burnt Bronze A2 Birdcage Flash Hider 10.5" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System Ghost FDE 9" M-Lok Hand Guard
    Now: $259.00
    Was: $329.00
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    Now: $259.00
    Was: $329.00
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  • Mil Spec AR15 Upper | Periwinkle Cerakote 16" 5.56 NATO | 4150 Barrel | 1:7 Twist Rate
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    Ghost 16" 5.56 Nato Upper Receiver - Periwinkle

    Now: $259.00
    Was: $329.00
    Ghost Firearms Elite 16" 5.56 Upper - Periwinkle The new 5.56 Nato AR-15 Upper with free float hand guard by Grid Defense. Periwinkle Complete Upper Receiver AR15 Receiver Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 16" 1:7...
    Now: $259.00
    Was: $329.00
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    Now: $259.00
    Was: $329.00
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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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  • Cerakote Finish | Tungsten Gray | 7.5" Barrel Upper Receiver with Dust Cover & Forward Assist | AR 15
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    Grid Defense GX2 7.5" 5.56 Flash Can Upper Receiver - Tungsten Gray

    Now: $329.00
    Was: $399.00
    Grid Defense GX2 7.5" 5.56 NATO Flash Can Upper Mil-Spec 7075-T6 5.56 Flash Can Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO 9" Grid Defense GX2 Octagon M-Lok Rail Dimpled Flash Can  Pistol Length Gas...
    Now: $329.00
    Was: $399.00
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    Now: $329.00
    Was: $399.00
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  • Limited Edition AR15 Upper Receiver | 5.56 NATO Magpul FDE 10.5" Pistol Upper with Billet Dust Cover | Mil Spec
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    ALWAYS ARMED 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER - MAGPUL FDE/OD GREEN LIMITED EDITION

    $358.00
    Always Armed 10.5" 5.56 NATO Flash Can Upper Receiver - LIMITED EDITION Made in the USA Magpul FDE Mil-Spec 7075 T6 Upper Receiver   Forward Assist Timber Creek Outdoors Billet Dust Cover - OD Green 10.5" 1:7 Twist 4150 Barrel with Black...
    $358.00
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    $358.00
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  • ALWAYS ARMED 10.5" 5.56 NATO TR SERIES UPPER RECEIVER - BURNT BRONZE Shop this 5.56 NATO Upper for the next build of your AR-15
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    ALWAYS ARMED 10.5" 5.56 NATO TR SERIES UPPER RECEIVER - BURNT BRONZE

    Now: $209.00
    Was: $299.00
    Always Armed 10.5" 5.56 NATO TR Series 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...
    Now: $209.00
    Was: $299.00
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    Now: $209.00
    Was: $299.00
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  • Pink Champagne Cerakoted AR-15 Rifle Upper Receiver | Carbine Length Gas System
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    ALWAYS ARMED 16" 5.56 MAKO UPPER RECEIVER - PINK CHAMPAGNE

    $319.00
    ALWAYS ARMED 16" 5.56 MAKO UPPER RECEIVER 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 .750 Low Profile Gas...
    $319.00
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    $319.00
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