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...
    Now: $209.00
    Was: $309.00
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    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...
    Now: $209.00
    Was: $309.00
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    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"...
    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...
    Now: $209.00
    Was: $299.00
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    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...
    Now: $239.00
    Was: $349.00
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    Now: $239.00
    Was: $349.00
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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...
    $199.00 - $219.00
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    $199.00 - $219.00
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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...
    Now: $219.00
    Was: $319.00
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    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
    Now: $219.00
    Was: $349.00
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    Now: $219.00
    Was: $349.00
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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...
    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 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...
    Now: $209.00
    Was: $309.00
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    Now: $209.00
    Was: $309.00
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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...
    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 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...
    Now: $239.00
    Was: $349.00
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    Now: $239.00
    Was: $349.00
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  • Out of stock
    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...
    Now: $189.00
    Was: $249.00
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    Now: $189.00
    Was: $249.00
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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...
    Now: $209.00
    Was: $309.00
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    Now: $209.00
    Was: $309.00
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  • ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER - SIG PINK
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    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER - SIG PINK

    Now: $219.00
    Was: $319.00
    Always Armed 16" 5.56 NATO Upper Receiver - Sig Pink 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
    Now: $219.00
    Was: $319.00
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    Now: $219.00
    Was: $319.00
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  • Out of stock
    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...
    Now: $209.00
    Was: $309.00
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    Qty in Cart: 0
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    Now: $209.00
    Was: $309.00
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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...
    Now: $199.00
    Was: $269.00
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    Now: $199.00
    Was: $269.00
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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...
    Now: $199.00
    Was: $339.00
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    Now: $199.00
    Was: $339.00
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    Out of stock
  • 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...
    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...
    Now: $209.00
    Was: $299.00
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    Now: $209.00
    Was: $299.00
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