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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  • 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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    Was: $269.00
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  • Ridgeway Blue AR15 Upper Receiver | 5.56 NATO
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    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE Made in the USA Ridgeway Blue 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...
    Now: $219.00
    Was: $319.00
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    Now: $219.00
    Was: $319.00
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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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    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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  • 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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  • AR15 Tactical Grape 7.5" 5.56 Upper Receiver with 9" rail and dimpled flash can by Grid Defense Grid Defense Mil-Spec 7.5" 5.56 Flash Can Upper Receiver with 9" M-Lok Handguard in purple cerakote
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    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Tactical Grape

    Now: $329.00
    Was: $399.00
    Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Tactical Grape Finished in Purple Cerakote Chambered in 5.56x45 NATO 1:7 Twist 7.5" 4150 M4 Barrel - Black Nitride Dimpled Flash Can 9" Grid Defense Octagon Rail Pistol Length Gas System 7075-T6 Mil Spec...
    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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  • ALWAYS ARMED 16" 5.56 NATO OCTO SERIES UPPER RECEIVER - BAZOOKA GREEN 16" 5.56 1:7 Twist black nitride barrel
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    ALWAYS ARMED 16" 5.56 NATO OCTO SERIES UPPER RECEIVER - BAZOOKA GREEN

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED 16" 5.56 NATO OCTO SERIES UPPER RECEIVER - BAZOOKA GREEN 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...
    Now: $219.00
    Was: $319.00
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    Now: $219.00
    Was: $319.00
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  • ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Ridgeway Blue Shop now for your next quad rail upper receiver for your next tactical mission
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    ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Ridgeway Blue

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED 16" 5.56 NATO Upper Receiver with 15" M-LOK Quad Rail - Ridgeway Blue Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Finished in Ridgeway Blue Cerakote Carbine Length Gas System .750 Gas Block A2...
    Now: $219.00
    Was: $319.00
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    Now: $219.00
    Was: $319.00
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  • ALWAYS ARMED 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER WITH 12" RAIL, SIGHTS, AND BI-POD - BLACK SHOOTERS GATE | BIPOD | TRINITY FORCE SIGHTS
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    ALWAYS ARMED 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER WITH 12" RAIL, SIGHTS, AND BI-POD - BLACK

    Now: $249.00
    Was: $369.00
    ALWAYS ARMED 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER WITH 12" RAIL, SIGHTS, AND BI-POD - BLACK Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  16" 1:7 Twist 416R Stainless Steel Barrel Chambered in 5.56 NATO...
    Now: $249.00
    Was: $369.00
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    Now: $249.00
    Was: $369.00
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  • Always Armed 5" 5.56 NATO Octo IHS Stainless Steel Upper Receiver - Black Always Armed 5" 5.56 NATO Octo IHS Stainless Steel Upper Receiver - Black
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    Always Armed 5" 5.56 NATO Octo IHS Stainless Steel Upper Receiver - Black

    Now: $179.00
    Was: $299.00
    Always Armed 5" 5.56 Octo IHS Stainless Steel Upper Receiver Chambered in 5.56 NATO 416R Stainless Steel barrel 1/2x28 TPI thread pitch 1:5 twist rate Micro length gas system Mil-Spec upper receiver Upper machined from 7075 forged aluminum A2...
    Now: $179.00
    Was: $299.00
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    Now: $179.00
    Was: $299.00
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  • ALWAYS ARMED 7.5" 5.56 NATO NO SHOW FLASH CAN UPPER RECEIVER - SMITH & WESSON RED 7.5" 5.56 NATO 1:7 TWIST BARREL WITH FLASH CAN
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    ALWAYS ARMED 7.5" 5.56 NATO NO SHOW FLASH CAN UPPER RECEIVER - SMITH & WESSON RED

    Now: $264.00
    Was: $334.00
    ALWAYS ARMED 7.5" 5.56 NATO NO SHOW FLASH CAN UPPER RECEIVER - SMITH & WESSON RED 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...
    Now: $264.00
    Was: $334.00
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    Now: $264.00
    Was: $334.00
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  • GHOST FIREARMS 7.5" 5.56 FLASH CAN UPPER RECEIVER WITH BLUE TITANIUM 9" RAIL 7.5" 1:7 TWIST BARREL
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    GHOST 7.5" 5.56 BLUE TITANIUM UPPER RECEIVER WITH TEQUILA SUNRISE FLASH CAN

    Now: $299.00
    Was: $349.00
    GHOST 7.5" 5.56 FLASH CAN UPPER RECEIVER Proudly Made in the USA 7075 T6 Forged Aluminum Mil-Spec AR15 Upper Receiver - Blue Titanium 7.5" 1:7 Twist 4150 Steel Barrel Pistol Length Gas System .750 Low Profile Gas Block Tequila Sunrise Cerakote Flash Can...
    Now: $299.00
    Was: $349.00
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    Now: $299.00
    Was: $349.00
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