5.56mm Uppers

5.56mm Uppers

AR15 Upper receivers in 556 NATO available in 16", 10.5" and 7.5" lengths for your next build. Check out our AR-15 Uppers in Cerakote colors like FDE and Burnt Bronze. Please keep in mind these are the standard 5.56x45 Nato upper receivers and can use 5.56 or .223 ammo. If you are looking for something a little different than your standard rifle upper make sure you checkout the pistol upper receivers we offer and keep an eye out for new uppers and cerakote colors.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • ALWAYS ARMED 16" 5.56 NATO OCTO SERIES UPPER RECEIVER - TITANIUM 16" 5.56 1:7 Twist black nitride barrel
    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
    Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $319.00
    Subtotal:
  • ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Smith & Wesson Red Shop for your next training day with this quad rail upper from always armed
    Choose Options
    Quick view

    ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Smith & Wesson Red

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED 16" 5.56 NATO Upper Receiver with 15" M-LOK Quad Rail - Smith & Wesson Red Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Finished in Smith & Wesson Red Cerakote Carbine Length Gas System ...
    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:
  • ALWAYS ARMED 16" 5.56 NATO TRX SERIES UPPER RECEIVER - OD GREEN Shop this 16" upper receiver for your next rifle build. Chambered in 5.56 and ready for whatever you throw at it.
    Choose Options
    Quick view

    ALWAYS ARMED 16" 5.56 NATO TRX SERIES UPPER RECEIVER - OD GREEN

    Now: $229.00
    Was: $329.00
    Always Armed 16" 5.56 NATO TRX Series Upper Receiver - OD 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 Length Gas...
    Now: $229.00
    Was: $329.00
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $229.00
    Was: $329.00
    Subtotal:
    Choose Options
  • 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 5" 5.56 NATO Octo IHS Upper Receiver Always Armed 5" 5.56 NATO Octo IHS Upper Receiver
    Choose Options
    Quick view

    Always Armed 5" 5.56 NATO Octo IHS Upper Receiver

    Now: $219.00
    Was: $299.00
    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...
    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 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
    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
    Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $319.00
    Subtotal:
  • 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:
  • 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
  • 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
    Choose Options
    Quick view

    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
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $319.00
    Subtotal:
    Choose Options
  • 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
    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
    Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $279.00
    Was: $339.00
    Subtotal:
  • Chambered in 5.56 NATO 7" Free Float M-LOK TR Series Hand Rail
    Choose Options
    Quick view

    ALWAYS ARMED 7.5" 5.56 NATO STAINLESS STEEL TR SERIES UPPER RECEIVER - BLACK ANODIZED

    Now: $189.00
    Was: $279.00
    ALWAYS ARMED 7.5" 5.56 NATO STAINLESS STEEL TR 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 416R Stainless Steel Barrel Chambered in 5.56 NATO Pistol...
    Now: $189.00
    Was: $279.00
    Choose Options Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $189.00
    Was: $279.00
    Subtotal:
    Choose Options
  • ALWAYS ARMED 7.5" 5.56 NATO TR SERIES UPPER RECEIVER - BURNT BRONZE This mil-spec upper is finished in a burnt bronze cerakote that is tough enough for any challenge
    Choose Options
    Quick view

    ALWAYS ARMED 7.5" 5.56 NATO TR SERIES UPPER RECEIVER - BURNT BRONZE

    Now: $209.00
    Was: $299.00
    Always Armed 7.5" 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  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
  • AR15 Upper Receiver | 5.56 NATO Finished in Smith & Wesson Red Cerakote
    Choose Options
    Quick view

    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - SMITH & WESSON RED

    Now: $219.00
    Was: $319.00
    ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - SMITH & WESSON RED Made in the USA 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 Black Nitride Finish...
    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 Flash Can Upper Receiver with Orange Billet Dust Cover and Forward Assist
    Quick view

    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH TEQUILA SUNRISE CAN, TIMBER CREEK ORANGE DUST COVER AND FORWARD ASSIST

    $388.98
    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER Made in the USA Mil-Spec 7075 T6 5.56 Nato Flash Can Upper Receiver Timber Creek Billet Dust Cover - Orange Anodized Timber Creek Forward Assist - Orange Anodized  7.5" 1:7 Twist 4150...
    $388.98
    Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $388.98
    Subtotal:
  • ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - BLACK 7.5" 5.56 NATO 1"7 TWIST BARREL
    Quick view

    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - BLACK

    Now: $189.00
    Was: $279.00
    ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - BLACK 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 Hard Coat Black...
    Now: $189.00
    Was: $279.00
    Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $189.00
    Was: $279.00
    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
  • Total: items /

Adding your products to cart

View Cart Continue Shopping