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 5" 5.56 NATO Octo IHS Upper Receiver
$219.00 - $239.00Always 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...$219.00 - $239.00 -
ALWAYS ARMED 7.5" 5.56 AMERICAN FLAG DUST COVER UPPER RECEIVER - BLACK ANODIZED
Now: $189.00Was: $249.00Always 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: $189.00Was: $249.00 -
ALWAYS ARMED Jester 16" 5.56 NATO UPPER RECEIVER - BLACK
Now: $199.00Was: $269.00ALWAYS ARMED JESTER 16" 5.56 NATO UPPER RECEIVER Made in the USA Mil-Spec 7075 T6 5.56 Nato 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: $199.00Was: $269.00 -
ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - ZOMBIE GREEN
Now: $219.00Was: $319.00ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - ZOMBIE GREEN Made in the USA Zombie Green 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 Barrel...Now: $219.00Was: $319.00 -
Ghost Vital 7.5" Upper 5.56 Nato
Now: $239.00Was: $299.00Ghost Firearms Vital 7.5" Upper Chambered in 5.56x45 NATO (5.56/.223) A2 Birdcage Flash Hider 7.5" 1:7 Twist 4150 M4 Barrel Black Nitride Pistol Length Gas System Ghost Firearms 7" M-Lok Free Float Hand Guard Ghost...Now: $239.00Was: $299.00 -
Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Black Anodized
Now: $329.00Was: $399.00Grid Defense 10.5" 5.56 Flash Can Upper Receiver Hard Coat Black Anodized Finish Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride Chambered in 5.56x45 NATO Carbine Length Gas System .750 Low Profile...Now: $329.00Was: $399.00 -
ALWAYS ARMED 10.5" 5.56 NATO TR SERIES UPPER RECEIVER - BLACK
Now: $189.00Was: $249.00Always Armed 10.5" 5.56 NATO TR Series Upper Receiver - Black 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: $189.00Was: $249.00 -
ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Bazooka Green
Now: $219.00Was: $319.00ALWAYS 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: $219.00Was: $319.00Qty in Cart: 0Quantity:Price:Now: $219.00Was: $319.00Subtotal: -
ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Grape
Now: $219.00Was: $319.00ALWAYS ARMED 16" 5.56 NATO Upper Receiver with 15" M-LOK Quad Rail - Grape Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Finished in Grape Cerakote Carbine Length Gas System A2 Muzzle Device 1:7 Twist Rate BCG...Now: $219.00Was: $319.00Qty in Cart: 0Quantity:Price:Now: $219.00Was: $319.00Subtotal: -
Always Armed 16" Stainless Steel 5.56 Nato Upper Receiver - Titanium
Now: $209.00Was: $349.00Always Armed 16" Stainless Steel 5.56 Nato Upper Receiver - Titanium Titanium Cerakote Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 16" 1:7 Twist 416R Stainless Steel Barrel - M4 Profile Carbine Length Gas System .750 Low Profile Gas...Now: $209.00Was: $349.00 -
BLEMISHED ALWAYS ARMED 10.5" 5.56 NATO UPPER RECEIVER - BLACK
Now: $189.00Was: $249.00Blemished Always Armed 10.5" 5.56 NATO Upper Receiver - Black 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: $189.00Was: $249.00Qty in Cart: 0Quantity:Price:Now: $189.00Was: $249.00Subtotal: -
Grid Defense 7.5" 5.56 Flash Can Upper Receiver - OD Green
Now: $329.00Was: $399.00Grid Defense OD Green 7.5" 5.56 Flash Can Upper Finished in Magpul Olive Drab Green Cerakote 7075-T6 Mil Spec Upper Receiver Chambered in 5.56x45 NATO 1:7 Twist 7.5" 4150 M4 Barrel - Black Nitride 9" Grid Defense Octagon M Lok Rail Dimpled Flash...Now: $329.00Was: $399.00 -
ALWAYS ARMED 10.5" 5.56 NATO UPPER WITH FDE FLASH CAN - BLACK
Now: $239.00Was: $329.00ALWAYS ARMED 10.5" 5.56 NATO FLAHS CAN UPPER RECEIVER 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 System ...Now: $239.00Was: $329.00 -
ALWAYS ARMED 16" 5.56 NATO BLACK UPPER RECEIVER WITH 15" MAGPUL OD GREEN RAIL
Now: $199.00Was: $309.00ALWAYS 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: $199.00Was: $309.00 -
ALWAYS ARMED 16" 5.56 NATO MID LENGTH UPPER RECEIVER - BLACK
Now: $199.00Was: $319.00ALWAYS ARMED 16" 5.56 NATO MID LENGTH UPPER RECEIVER - BLACK Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:7 Twist 4150 Steel Barrel with Black Nitride Finish Chambered in 5.56 NATO Mid Length Gas System ...Now: $199.00Was: $319.00 -
ALWAYS ARMED 16" 5.56 NATO Quad Rail Upper Receiver - Smith & Wesson Red
Now: $219.00Was: $319.00ALWAYS 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: $219.00Was: $319.00 -
ALWAYS ARMED 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - OD GREEN
$299.00ALWAYS ARMED 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - OD GREEN Made in the USA Mil-Spec 7075 T6 5.56 Nato Upper Receiver with Dust Cover and Forward Assist 16" 1:7 Twist 416R Stainless Steel Barrel Chambered in 5.56 NATO...$299.00 -
ALWAYS ARMED 16" 5.56 NATO TRX SERIES UPPER RECEIVER - OD GREEN
Now: $229.00Was: $329.00Always 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: $229.00Was: $329.00 -
ALWAYS ARMED 7.5" BLACK 5.56 UPPER WITH 7" MAGPUL OD GREEN HANDRAIL
Now: $199.00Was: $269.00ALWAYS ARMED 7.5" BLACK 5.56 UPPER WITH 7" MAGPUL OD GREEN HANDRAIL Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist with Hard Coat Black Anodized Finish 10.5" 1:7 Twist 4150 Barrel with Black Nitride Finish 7" Free...Now: $199.00Was: $269.00 -
ALWAYS ARMED 7.5" STAINLESS STEEL 5.56 NATO BR SERIES DIMPLED FLASH CAN UPPER RECEIVER - BLACK ANODIZED
Now: $209.00Was: $299.00ALWAYS 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: $209.00Was: $299.00Qty in Cart: 0Quantity:Price:Now: $209.00Was: $299.00Subtotal: