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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  • Most Affordable 7.5" 5.56 NATO Upper Receiver with 7" Rail AR 15 Pistol Upper Receiver - Smith & Wesson Red
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    ALWAYS ARMED 7.5" 5.56 NATO UPPER RECEIVER - SMITH & WESSON RED

    Now: $209.00
    Was: $309.00
    Always Armed 7.5" 5.56 NATO 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 Pistol Length Gas...
    Now: $209.00
    Was: $309.00
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  • Blue Always Armed 7.5" 1:7 556 NATO Upper Receiver AR 15 Pistol Upper Receiver with M-Lok Rail - Ridgeway Blue Cerakote
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    ALWAYS ARMED 7.5" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE

    Now: $209.00
    Was: $309.00
    Always Armed 7.5" 5.56 NATO Upper Receiver - Ridgeway Blue 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 Gas System .750...
    Now: $209.00
    Was: $309.00
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  • ALWAYS ARMED OCTO SERIES 10.5" 5.56 FLASH CAN UPPER RECEIVER - BLACK 5.56 NATO | M-LOK
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    ALWAYS ARMED OCTO SERIES 10.5" 5.56 FLASH CAN UPPER RECEIVER - BLACK

    Now: $219.00
    Was: $249.00
    ALWAYS ARMED OCTO SERIES 10.5" 5.56 FLASH CAN UPPER RECEIVER - BLACK Made in the USA Hard Coat Black Anodized Finish Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist 12" Free Float M-LOK OCTO Series Rail 10.5" 1:7 Twist...
    Now: $219.00
    Was: $249.00
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    Now: $219.00
    Was: $249.00
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  • Custom Titanium Cerakoted Pistol Upper Receiver for Home Defense Semi Automatic 7.5" Upper Receiver with M-LOK Aluminum Rail
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    ALWAYS ARMED 7.5" 5.56 NATO UPPER RECEIVER - TITANIUM

    Now: $209.00
    Was: $299.00
    Always Armed 7.5" 5.56 NATO Upper Receiver - Titanium 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 5.56 NATO Pistol Length Gas System .750...
    Now: $209.00
    Was: $299.00
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  • 16" 1:7 twist barrel 15" free float m-lok quad rail
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    ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - OD Green

    Now: $239.00
    Was: $349.00
    ALWAYS ARMED 16" 5.56 NATO Upper Receiver with 15" M-LOK Quad Rail - OD Green Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Finished in OD Green Cerakote Carbine Length Gas System A2 Muzzle Device 1:7...
    Now: $239.00
    Was: $349.00
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  • ALWAYS ARMED 16" 5.56 NATO Upper Receiver - OD Green 15" free float m-lok rail
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    ALWAYS ARMED 16" 5.56 NATO Upper Receiver - Magpul OD Green

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED 16" 5.56 NATO Upper Receiver - Magpul OD Green Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Rail Finished in Magpul OD Green Cerakote Carbine Length Gas System A2 Muzzle Device 1:7 Twist Rate BCG...
    Now: $219.00
    Was: $319.00
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    Was: $319.00
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  • ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Titanium Shop this quad rail upper receiver to fit all your attachments for any need
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    ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Titanium

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED 16" 5.56 NATO Upper Receiver with 15" M-LOK Quad Rail - Titanium Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Finished in Titanium Cerakote Carbine Length Gas System .750 Gas Block A2 Muzzle Device...
    Now: $219.00
    Was: $319.00
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  • ALWAYS ARMED TR SERIES 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - MAGPUL FDE Stainless Steel Barrel and Stainless Steel A2 Flash Hider
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    ALWAYS ARMED TR SERIES 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - MAGPUL FDE

    Now: $219.00
    Was: $349.00
    Always Armed TR Series 16" 5.56 NATO Stainless Steel Upper Receiver - Magpul FDE Made in the USA Mil-Spec 7075 T6 Magpul Upper Receiver with Dust Cover and Forward Assist 16" 1:7 Twist 416R Stainless Steel Barrel Chambered in 5.56 NATO Carbine...
    Now: $219.00
    Was: $349.00
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  • ALWAYS ARMED 16" 5.56 NATO Upper Receiver with 15" M-LOK Quad Rail - Tungsten Gray 16" 1:7 twist barrel
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    ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Tungsten Gray

    Now: $239.00
    Was: $349.00
    ALWAYS ARMED 16" 5.56 NATO Upper Receiver with 15" M-LOK Quad Rail - Tungsten Gray Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Finished in Tungsten Gray Cerakote Carbine Length Gas System A2 Muzzle Device 1:7...
    Now: $239.00
    Was: $349.00
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    Was: $349.00
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  • ALWAYS ARMED 7.5" 5.56 AMERICAN FLAG DUST COVER UPPER RECEIVER - BLACK ANODIZED Milspec AR15 Pistol Upper Receiver 7.5" Upper with 1:7 Twist
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    ALWAYS ARMED 7.5" 5.56 AMERICAN FLAG DUST COVER UPPER RECEIVER - BLACK ANODIZED

    Now: $189.00
    Was: $249.00
    Always Armed 7.5" 5.56 NATO Upper Receiver - Black Anodized Made in the USA Custom Laser Engraved American Flag Dust Cover Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  7.5" 1:7 Twist 4150 Barrel with Black Nitride...
    Now: $189.00
    Was: $249.00
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  • Always Armed 7.5" 5.56 NATO Pistol Upper Receiver with 7" M Lok Hand Guard ALWAYS ARMED 7.5" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLUE TITANIUM
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    ALWAYS ARMED 7.5" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLUE TITANIUM

    Now: $209.00
    Was: $309.00
    ALWAYS ARMED 7.5" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLUE TITANIUM  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 Length Gas...
    Now: $209.00
    Was: $309.00
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    Now: $209.00
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  • Always Armed 5" 5.56 NATO Octo IHS Upper Receiver Always Armed 5" 5.56 NATO Octo IHS Upper Receiver
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    Always Armed 5" 5.56 NATO Octo IHS Upper Receiver

    $199.00 - $219.00
    Always Armed 5" 5.56 Octo IHS Upper Receiver Chambered in 5.56 NATO 4150 salt bath nitride 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 flash hider...
    $199.00 - $219.00
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  • 16" 1:7 Twist 5.56 Barrel Finished in Sig Pink Cerakote
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    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - SIG PINK

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - SIG PINK Made in the USA Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist  Carbine Length Gas System 750 Low Profile Gas Block 15" Free Float M-LOK OCTO Series Rail 16"...
    Now: $219.00
    Was: $319.00
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  • Out of stock
    ALWAYS ARMED LTW SERIES 16" 5.56 NATO UPPER RECEIVER - BLACK 16 5.556 nato 1:7 twist barrel
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    ALWAYS ARMED ULTRALIGHT SERIES 16" 5.56 NATO UPPER RECEIVER WITH 13.5" 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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  • ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE RIDGEWAY BLUE | 7.5" 5.56 NATO BARREL
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    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE

    Now: $209.00
    Was: $309.00
    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE 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...
    Now: $209.00
    Was: $309.00
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    Now: $209.00
    Was: $309.00
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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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    Now: $209.00
    Was: $299.00
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  • ALWAYS ARMED 10.5" 5.56 NATO UPPER RECEIVER - ZOMBIE GREEN This 10.5" Upper is ready for your next statement build finished in zombie green cerakote
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    ALWAYS ARMED 10.5" 5.56 NATO UPPER RECEIVER - ZOMBIE GREEN

    Now: $199.00
    Was: $299.00
    Always Armed 10.5" 5.56 NATO Upper Receiver - Zombie Green 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: $199.00
    Was: $299.00
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    Now: $199.00
    Was: $299.00
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  • ALWAYS ARMED 16" 5.56 NATO BLACK UPPER RECEIVER WITH 15" OD GREEN RAIL 16" 5.56 NATO 1:7 twist Barrel
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    ALWAYS ARMED 16" 5.56 NATO BLACK UPPER RECEIVER WITH 15" MAGPUL OD GREEN RAIL

    Now: $209.00
    Was: $309.00
    ALWAYS ARMED 16" 5.56 NATO BLACK UPPER RECEIVER WITH 15" MAGPUL OD GREEN 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...
    Now: $209.00
    Was: $309.00
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  • Out of stock
    ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Bazooka Green Get this Upper receiver chambered in 5.56 nato and finished in bazooka green cerakote
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    ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Bazooka Green

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED 16" 5.56 NATO Upper Receiver with 15" M-LOK Quad Rail - Bazooka Green Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Finished in Bazooka Green Cerakote Carbine Length Gas System .750 Gas...
    Now: $219.00
    Was: $319.00
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    Now: $219.00
    Was: $319.00
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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: $309.00
    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: $309.00
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    Now: $209.00
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