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" STAINLESS STEEL 5.56 BR SERIES DIMPLED FLASH CAN UPPER RECEIVER - BLACK ANODIZED 416R stainless steel 1:7 twist rate barrel
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    ALWAYS ARMED 7.5" STAINLESS STEEL 5.56 NATO BR SERIES DIMPLED FLASH CAN UPPER RECEIVER - BLACK ANODIZED

    Now: $209.00
    Was: $299.00
    ALWAYS ARMED 7.5" STAINLESS STEEL 5.56 NATO BR SERIES DIMPLED FLASH CAN UPPER RECEIVER - BLACK ANODIZED Made in the USA Chambered in 556mm Mil Spec 556mm Upper Receiver 7.5" 416R Stainless Steel Barrel 1:7 Twist Rate 9" BR Series Free Float M-LOK...
    Now: $209.00
    Was: $299.00
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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 WITH 12" RAIL - BLACK

    Now: $199.00
    Was: $269.00
    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER WITH 12" RAIL- 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...
    Now: $199.00
    Was: $269.00
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    Was: $269.00
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  • ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - SMITH & WESSON RED SMITH & WESSON RED CERAKOTE | 7.5" 5.56 NATO BARREL
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    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - SMITH & WESSON RED

    Now: $209.00
    Was: $299.00
    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - SMITH & WESSON RED 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...
    Now: $209.00
    Was: $299.00
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  • ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - TITANIUM TITANIUM | 7.5" 5.56 NATO BARREL
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    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - TITANIUM

    Now: $209.00
    Was: $299.00
    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - TITANIUM 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...
    Now: $209.00
    Was: $299.00
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    Was: $299.00
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  • Ghost Vital 10.5" Upper 5.56 Nato
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    Ghost Vital 10.5" Upper 5.56 Nato - Black

    Now: $239.00
    Was: $299.00
    Ghost Vital 10.5" Upper 5.56 Nato Chambered in 5.56 NATO Mil Spec Upper Receiver with Dust Cover and Forward Assist A2 Birdcage Flash Hider 10.5" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System Ghost Firearms 9' M-Lok Hand Guard Hard Coat...
    Now: $239.00
    Was: $299.00
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  • ALWAYS ARMED 16" 5.56 NATO BLACK UPPER RECEIVER WITH 12" FDE RAIL
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    ALWAYS ARMED 16" 5.56 NATO BLACK UPPER RECEIVER WITH 12" FDE RAIL

    Now: $209.00
    Was: $309.00
    ALWAYS ARMED 16" 5.56 NATO BLACK UPPER RECEIVER WITH 12" FDE RAIL Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  Upper Receiver Finished in Hard Coat Black Anodize 16" 1:7 Twist 4150 Barrel with Black Nitride...
    Now: $209.00
    Was: $309.00
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    Was: $309.00
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  • ALWAYS ARMED 16" 5.56 NATO OCTO SERIES UPPER RECEIVER - TITANIUM 16" 5.56 1:7 Twist black nitride barrel
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    ALWAYS ARMED 16" 5.56 NATO OCTO SERIES UPPER RECEIVER - TITANIUM

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED 16" 5.56 NATO OCTO SERIES UPPER RECEIVER - TITANIUM 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...
    Now: $219.00
    Was: $319.00
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    Was: $319.00
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  • ALWAYS ARMED 16" 5.56 NATO TR SERIES UPPER RECEIVER - MAGPUL FDE 5.56 NATO is the most common AR round in the US. After being the military standard for combat rifle.
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    ALWAYS ARMED 16" 5.56 NATO TR SERIES UPPER RECEIVER - MAGPUL FDE

    Now: $219.00
    Was: $319.00
    Always Armed 16" 5.56 NATO TR Series Upper Receiver - FDE 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...
    Now: $219.00
    Was: $319.00
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  • ALWAYS ARMED 16" 5.56 NATO TRX SERIES UPPER RECEIVER - GOLD Discover the ALWAYS ARMED 16" 5.56 NATO TRX Series Upper Receiver in Gold, crafted for durability and peak performance. This upper receiver combines premium construction with a standout gold finish for a reliable and striking AR build.
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    ALWAYS ARMED 16" 5.56 NATO TRX SERIES UPPER RECEIVER - GOLD

    Now: $239.00
    Was: $339.00
    Always Armed 16" 5.56 NATO TRX Series Upper Receiver - Gold 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...
    Now: $239.00
    Was: $339.00
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    Was: $339.00
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  • ALWAYS ARMED 16" 5.56 NATO TRX SERIES UPPER RECEIVER - MAGPUL FDE Shop this upper for your next 5.56 build. Designed to be lightweight and easy to maneuver with.
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    ALWAYS ARMED 16" 5.56 NATO TRX SERIES UPPER RECEIVER - MAGPUL FDE

    Now: $229.00
    Was: $329.00
    Always Armed 16" 5.56 NATO TRX Series Upper Receiver - FDE 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...
    Now: $229.00
    Was: $329.00
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    Was: $329.00
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  • AR15 Upper Receiver Combo | 5.56 NATO | .300 Blackout
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    ALWAYS ARMED 16" UPPER RECEIVER WITH 12" RAIL COMBO DEAL - 5.56 NATO/.300 BLACKOUT

    Now: $395.00
    Was: $558.00
    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: $395.00
    Was: $558.00
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    Now: $395.00
    Was: $558.00
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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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    Was: $289.00
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  • ALWAYS ARMED 7.5" 5.56 NATO OCTO SERIES UPPER RECEIVER - MAGPUL FDE This upper is the best for your next CQB 5.56 upper build
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    ALWAYS ARMED 7.5" 5.56 NATO OCTO SERIES UPPER RECEIVER - MAGPUL FDE

    Now: $209.00
    Was: $299.00
    Always Armed 7.5" 5.56 NATO OCTO 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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  • ALWAYS ARMED 7.5" 5.56 NATO UPPER RECEIVER - BLUE TITANIUM
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    ALWAYS ARMED 7.5" 5.56 NATO UPPER RECEIVER - BLUE TITANIUM

    Now: $209.00
    Was: $299.00
    ALWAYS ARMED 7.5" 5.56 NATO UPPER RECEIVER Made in the USA Mil-Spec 7075 T6 7.5" Nato 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 Gas System .750 Low Profile...
    Now: $209.00
    Was: $299.00
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    Was: $299.00
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  • 16" 5.56 NATO UPPER RECEIVER | ALWAYS ARMED MAGPUL FLAT DARK EARTH | AR15 | MIL SPEC UPPER
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    ALWAYS ARMED JESTER 16" 5.56 NATO UPPER RECEIVER - FDE

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED JESTER 16" 5.56 NATO 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...
    Now: $219.00
    Was: $319.00
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    Now: $219.00
    Was: $319.00
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  • 1:7 Twist 4150 Black Nitride Barrel | Carbine Length Gas System ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - TEQUILA SUNRISE
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    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - TEQUILA SUNRISE

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - TEQUILA SUNRISE Made in the USA Tequila Sunrise 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...
    Now: $219.00
    Was: $319.00
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    Now: $219.00
    Was: $319.00
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  • 5.56 NATO | AR15 Pistol Upper Receiver | Mil Spec 1:7 Twist Black Nitride Barrel with 9.25" M-LOK Hand Guard | Black Anodized
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    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO WTIH ZOMBIE GREEN FLASH CAN UPPER RECEIVER - BLACK

    Now: $289.00
    Was: $329.00
    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER Made in the USA Mil-Spec 7075 T6 octo series 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: $289.00
    Was: $329.00
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    Now: $289.00
    Was: $329.00
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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

    $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...
    $429.00
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    $429.00
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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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    Now: $329.00
    Was: $399.00
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  • US MILITARY 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 12" JESTER RAIL - BLACK UNITED STATES MARINE CORPS
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    US MILITARY 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 12" JESTER RAIL - BLACK

    Now: $219.00
    Was: $299.00
    VETERAN'S DAY 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 12" MLOK RAIL - BLACK Hard Coat Black Anodized Finish Mil-Spec AR15 Upper Receiver Mil-Spec Forward Assist  Laser Engraved Dust Cover 12" Jester Free Float M-LOK Rail 10.5" 1:7...
    Now: $219.00
    Was: $299.00
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