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.
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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: $319.00Qty in Cart: 0Quantity:Price:Now: $199.00Was: $319.00Subtotal: -
ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 10" M-LOK RAIL - TUNGSTEN GRAY
Now: $219.00Was: $319.00ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 10" M-LOK RAIL - TUNGSTEN GRAY Made in the USA Mil Spec AR15 Upper Receiver 15" M-Lok Hand Guard A2 Flash Hider 1:7 Twist 4150 Steel Barrel with Black Nitride Finish .750 Low Profile Gas Block Stainless...Now: $219.00Was: $319.00Qty in Cart: 0Quantity:Price:Now: $219.00Was: $319.00Subtotal: -
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 JESTER 16" 5.56 NATO UPPER RECEIVER - BURNT BRONZE
Now: $219.00Was: $319.00ALWAYS 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 Gas...Now: $219.00Was: $319.00Qty in Cart: 0Quantity:Price:Now: $219.00Was: $319.00Subtotal: -
ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER WITH STAINLESS STEEL BARREL AND AXE BRAKE - BLACK
$299.00ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER Made in the USA Hard Coat Black Anodized Finish Mil-Spec 7075 T6 5.56 Nato Upper Receiver with Dust Cover and Forward Assist 15" Free Float M-LOK OCTO Series Rail 16" 1:7 Twist 416R Stainless Steel...$299.00Qty in Cart: 0Quantity:Price:$299.00Subtotal: -
Ghost Elite 16" Upper 5.56 NATO - Black
Now: $249.00Was: $299.00Ghost Firearms 16" 5.56 NATO Upper Receiver - Black Mil-Spec 7075 Forged Aluminum Black 16" Nato Upper Receiver 14" Ghost Firearms M-Lok Rail Black Anodized Finish 16" 1:7 Twist 4150 M4 Barrel - Black Nitride A2 Birdcage Muzzle Device Carbine Length Gas...Now: $249.00Was: $299.00 -
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 -
Grid Defense GX2 7.5" 5.56 Flash Can Upper Receiver - Black Anodized
Now: $329.00Was: $399.00Grid Defense GX2 7.5" 5.56 NATO Flash Can Upper Mil-Spec 7075-T6 7.5" Flash Can Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO 9" Grid Defense GX2 Octagon M-Lok Rail Dimpled Flash Can Pistol Length Gas...Now: $329.00Was: $399.00 -
ALWAYS ARMED 16" 5.56 NATO OCTO SERIES UPPER RECEIVER - TITANIUM
Now: $219.00Was: $319.00ALWAYS 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: $219.00Was: $319.00 -
ALWAYS ARMED 16" 5.56 NATOÂ Quad Rail Upper Receiver - Burnt Bronze
Now: $219.00Was: $299.00ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 15" M-LOK QUAD RAIL - BURNT BRONZE Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Burnt Bronze Cerakote Finish Carbine Length Gas System A2 Muzzle Device 1:7 Twist...Now: $219.00Was: $299.00 -
ALWAYS ARMED 7.5" 5.56 NATO BX SERIES UPPER RECEIVER - BLACK ANODIZED
Now: $189.00Was: $279.00ALWAYS ARMED 7.5" 5.56 NATO BX 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 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Pistol Length Gas...Now: $189.00Was: $279.00 -
ALWAYS ARMED 7.5" 5.56 NATO TR SERIES UPPER RECEIVER - BLACK
Now: $189.00Was: $249.00Always Armed 7.5" 5.56 NATO TR Series Upper Receiver - Black Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 7.5" 1:7 Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Pistol Length Gas...Now: $189.00Was: $249.00Qty in Cart: 0Quantity:Price:Now: $189.00Was: $249.00Subtotal: -
ALWAYS ARMED Jester 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLACK
$299.00ALWAYS ARMED Jester 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLACK 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...$299.00Qty in Cart: 0Quantity:Price:$299.00Subtotal: -
ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE
Now: $219.00Was: $319.00ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE Made in the USA Ridgeway Blue 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 with...Now: $219.00Was: $319.00 -
ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - SIG PINK
Now: $209.00Was: $299.00ALWAYS ARMED OCTO SERIES 7.5" 5.56 NATO UPPER RECEIVER - SIG PINK 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 Sig...Now: $209.00Was: $299.00 -
GHOST 10.5" 5.56 BURNT BRONZE UPPER RECEIVER WITH 9" FDE M-LOK RAIL
Now: $259.00Was: $329.00GHOST 10.5" 5.56 NATO UPPER RECEIVER Chambered in 5.56 NATO 7075 T6 Forged Aluminum Mil-Spec AR15 Upper Receiver - Burnt Bronze A2 Birdcage Flash Hider 10.5" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System Ghost FDE 9" M-Lok Hand GuardNow: $259.00Was: $329.00 -
Ghost 16" 5.56 Nato Upper Receiver - Periwinkle
Now: $259.00Was: $329.00Ghost Firearms Elite 16" 5.56 Upper - Periwinkle The new 5.56 Nato AR-15 Upper with free float hand guard by Grid Defense. Periwinkle Complete Upper Receiver AR15 Receiver Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 16" 1:7...Now: $259.00Was: $329.00 -
Grid Defense 16" 5.56 Upper Receiver - Tungsten Gray
Now: $329.00Was: $399.00Grid Defense 16" 5.56 Upper Receiver - Tungsten Gray Tungsten Gray Cerakote Finish Chambered in 5.56x45 NATO 14" M-Lok Rail 16" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System A2 Flash Hider Mil-Spec 7075-T6 Upper ReceiverNow: $329.00Was: $399.00 -
Grid Defense GX2 7.5" 5.56 Flash Can Upper Receiver - Tungsten Gray
Now: $329.00Was: $399.00Grid Defense GX2 7.5" 5.56 NATO Flash Can Upper Mil-Spec 7075-T6 5.56 Flash Can Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO 9" Grid Defense GX2 Octagon M-Lok Rail Dimpled Flash Can Pistol Length Gas...Now: $329.00Was: $399.00Qty in Cart: 0Quantity:Price:Now: $329.00Was: $399.00Subtotal: -
ALWAYS ARMED 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER - MAGPUL FDE/OD GREEN LIMITED EDITION
$358.00Always Armed 10.5" 5.56 NATO Flash Can Upper Receiver - LIMITED EDITION Made in the USA Magpul FDE Mil-Spec 7075 T6 Upper Receiver Forward Assist Timber Creek Outdoors Billet Dust Cover - OD Green 10.5" 1:7 Twist 4150 Barrel with Black...$358.00Qty in Cart: 0Quantity:Price:$358.00Subtotal: