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.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - BLACK Mil Spec AR15 Rifle Upper Receiver with M-LOK Free Float Rail
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $199.00
    Was: $269.00
    Subtotal:
    Choose Options
  • ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - SMITH & WESSON RED SMITH & WESSON RED CERAKOTE | 7.5" 5.56 NATO BARREL
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $209.00
    Was: $299.00
    Subtotal:
    Choose Options
  • ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - TITANIUM TITANIUM | 7.5" 5.56 NATO BARREL
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $209.00
    Was: $299.00
    Subtotal:
    Choose Options
  • Ghost Vital 10.5" Upper 5.56 Nato
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $239.00
    Was: $299.00
    Subtotal:
    Choose Options
  • ALWAYS ARMED 16" 5.56 NATO BLACK UPPER RECEIVER WITH 12" FDE RAIL
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $209.00
    Was: $309.00
    Subtotal:
    Choose Options
  • ALWAYS ARMED 16" 5.56 NATO OCTO SERIES UPPER RECEIVER - TITANIUM 16" 5.56 1:7 Twist black nitride barrel
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $319.00
    Subtotal:
    Choose Options
  • 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.
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $319.00
    Subtotal:
    Choose Options
  • 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.
    Quick view

    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
    Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $239.00
    Was: $339.00
    Subtotal:
  • AR15 Upper Receiver Combo | 5.56 NATO | .300 Blackout
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $395.00
    Was: $558.00
    Subtotal:
    Choose Options
  • 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
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $209.00
    Was: $299.00
    Subtotal:
    Choose Options
  • ALWAYS ARMED 7.5" 5.56 NATO UPPER RECEIVER - BLUE TITANIUM
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $209.00
    Was: $299.00
    Subtotal:
    Choose Options
  • 16" 5.56 NATO UPPER RECEIVER | ALWAYS ARMED MAGPUL FLAT DARK EARTH | AR15 | MIL SPEC UPPER
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $319.00
    Subtotal:
    Choose Options
  • 1:7 Twist 4150 Black Nitride Barrel | Carbine Length Gas System ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - TEQUILA SUNRISE
    Quick view

    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
    Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $319.00
    Subtotal:
  • 5.56 NATO | AR15 Pistol Upper Receiver | Mil Spec 1:7 Twist Black Nitride Barrel with 9.25" M-LOK Hand Guard | Black Anodized
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $289.00
    Was: $329.00
    Subtotal:
    Choose Options
  • Andro Corp 10.5" 5.56 Front Sight Upper Receiver - Black Shop this M4 style Upper Receiver for your next A2 Upper Receiver build
    Quick view

    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
    Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $429.00
    Subtotal:
  • 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
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $329.00
    Was: $399.00
    Subtotal:
    Choose Options
  • US MILITARY 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 12" JESTER RAIL - BLACK UNITED STATES MARINE CORPS
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $299.00
    Subtotal:
    Choose Options
  • ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Sig Pink Shop and save on this versatile 5.56 upper receiver finished in Sig Pink perfect for the shooter just starting to explore
    Quick view

    ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Sig Pink

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED 16" 5.56 NATO Upper Receiver with 15" M-LOK Quad Rail - Sig Pink Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Finished in Sig Pink Cerakote Carbine Length Gas System .750 Gas Block A2 Muzzle Device...
    Now: $219.00
    Was: $319.00
    Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $319.00
    Subtotal:
  • FINISHED IN HARD COAT BLACK ANODIZING 16" 5.56 NATO UPPER RECEIVER WITH 1:7 TWIST BARREL
    Choose Options
    Quick view

    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 12" KEYMOD HAND GUARD

    Now: $199.00
    Was: $269.00
    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: $199.00
    Was: $269.00
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $199.00
    Was: $269.00
    Subtotal:
    Choose Options
  • ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH STAINLESS STEEL HBAR
    Choose Options
    Quick view

    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH STAINLESS STEEL HBAR, 12" M-LOK RAIL, POP UP SIGHTS AND BIPOD FOREGRIP

    Now: $279.00
    Was: $339.00
    ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH STAINLESS STEEL HBAR, 12" M-LOK RAIL, POP UP SIGHTS AND BIPOD FOREGRIP Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  16" 1:7 Twist 416R Stainless Steel HBAR...
    Now: $279.00
    Was: $339.00
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $279.00
    Was: $339.00
    Subtotal:
    Choose Options
  • Total: items /

Adding your products to cart

View Cart Continue Shopping