AR15 - 5.56 NATO
Shop our selection of 5.56 complete uppers and build kits for your next AR-15. Designed for the best performance possible while not breaking the bank. Use these to upgrade your current gun or have a fresh start for something unique. Whether you're building a self defense pistol or a rifle for hunting these uppers will do the job.
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On Sale
ALWAYS ARMED 16" 5.56 NATO UPPER WITH 15" TR RAIL TRINITY FORCE SIGHTS RIFLE KIT - FDE
Sale: $389.00MSRP: $519.98Always Armed 16" 5.56 NATO Upper With 15" TR Rail Trinity Force Sights Rifle Kit - 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...Sale: $389.00MSRP: $519.98 -
On Sale
ALWAYS ARMED 7.5" 5.56 NATO STAINLESS STEEL TR SERIES UPPER RECEIVER - BLACK ANODIZED
Sale: $209.00MSRP: $269.00ALWAYS 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...Sale: $209.00MSRP: $269.00 -
On Sale
ALWAYS ARMED TR SERIES 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER - BURNT BRONZE
Sale: $229.00MSRP: $319.00ALWAYS ARMED TR SERIES 10.5" 5.56 NATO FLASH CAN UPPER RECEIVER - BURNT BRONZE 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...Sale: $229.00MSRP: $319.00 -
On Sale
Grid Defense 16" 5.56 Quad Rail Upper Receiver - Blue Titanium
Sale: $329.00MSRP: $399.00Grid Defense 16" 5.56 Quad Rail Upper Receiver - Blue Titanium Blue Titanium Cerakote Finish Chambered in 5.56x45 NATO 14" M-Lok Quad Rail 16" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System A2 Flash Hider Mil-Spec 7075-T6 Upper ReceiverSale: $329.00MSRP: $399.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO TR RIFLE KIT - BLACK
Sale: $349.00MSRP: $469.00ALWAYS ARMED 16" 5.56 NATO TRX RIFLE KIT 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...Sale: $349.00MSRP: $469.00 -
On Sale
ALWAYS ARMED JESTER 16" 5.56 NATO RIFLE KIT - BLACK
Sale: $349.00MSRP: $469.00Always Armed Jester 16" 5.56 NATO Rifle Kit - Black Anodized 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 ...Sale: $349.00MSRP: $469.00 -
On Sale
Ghost Firearms 10.5" 5.56 Flash Can Upper Receiver Pistol Kit - FDE
Sale: $449.00MSRP: $599.00Ghost Firearms 10.5" Flash Can Upper Receiver Pistol Build Kit Finished in Magpul Flat Dark Earth Cerakote Milspec 7075-T6 Upper Receiver 10.5" 1:7 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO .750 Low Profile Gas Block Carbine Length Gas...Sale: $449.00MSRP: $599.00 -
On Sale
Grid Defense 10.5" 5.56 Upper Receiver - OD Green
Sale: $299.00MSRP: $379.00Grid Defense 10.5" 5.56 Upper Receiver Finished in Magpul Olive Drab Green Cerakote Chambered in 5.56x45 NATO 7075-T6 Milspec Upper Receiver 10.5" 1:7 Twist 4150 Steel M4 Barrel - Black Nitride .750 Low Profile Gas Block Carbine Length Gas System A2...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense 16" 5.56 Quad Rail Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" 5.56 Quad Rail Upper Receiver - Burnt Bronze Burnt Bronze Cerakote Finish Chambered in 5.56x45 NATO 14" M-Lok Quad Rail 16" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System A2 Flash Hider Mil-Spec 7075-T6 Upper ReceiverSale: $329.00MSRP: $399.00 -
On Sale
ALWAYS ARMED Jester 16" 5.56 NATO UPPER RECEIVER - BLACK
Sale: $199.00MSRP: $299.00ALWAYS 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...Sale: $199.00MSRP: $299.00 -
On Sale
ALWAYS ARMED OCTO SERIES 10.5" 5.56 UPPER RECEIVER - FDE
Sale: $209.00MSRP: $299.00ALWAYS ARMED OCTO SERIES 10.5" 5.56 UPPER RECEIVER - FDE Made in the USA Magpul FDE Cerakote Finish Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist 9.25" Free Float M-LOK OCTO Series Rail 10.5" 1:7 Twist Barrel with Black Nitride...Sale: $209.00MSRP: $299.00 -
Out of stockOn Sale
US MILITARY 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 9" JESTER RAIL - BLACK
Sale: $229.00MSRP: $299.00VETERAN'S DAY 7.5" 5.56 NATO FLASH CAN UPPER RECEIVER WITH 9" MLOK RAIL - BLACK Hard Coat Black Anodized Finish Mil-Spec AR15 Upper Receiver Mil-Spec Forward Assist Laser Engraved Dust Cover 9" Jester Free Float M-LOK Rail 7.5" 1:7 Twist 4150...Sale: $229.00MSRP: $299.00 -
Out of stock
7.5" 5.56 NATO COMPLETE UPPER RECEIVER WITH 7" KEYMOD RAIL, BCG, CHARGING HANDLE & SIGHTS - FDE
$429.007.5" 5.56 NATO COMPLETE UPPER RECEIVER WITH 7" KEYMOD RAIL, BCG, CHARGING HANDLE & SIGHTS Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 7.5" 1:7 Twist 4150 Black Nitride Barrel Chambered in 5.56 NATO A2...$429.00 -
On Sale
ALWAYS ARMED Jester 16" 5.56 NATO UPPER RECEIVER WITH 12" RAIL- BLACK
Sale: $199.00MSRP: $299.00ALWAYS 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...Sale: $199.00MSRP: $299.00 -
Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Tactical Grape
$399.00Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in Purple Cerakote 5.56 Upper Receiver 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 ...$399.00 -
On Sale
Grid Defense 7.5" 5.56 Upper Receiver - OD Green
Sale: $299.00MSRP: $379.00GRID DEFENSE 7.5" 5.56 OD GREEN UPPER RECEIVER Finished in Magpul Olive Drab Green Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length Gas System A2 Flash Hider...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense Stainless Steel 16" 5.56 Upper Receiver - Flat Dark Earth
Sale: $329.00MSRP: $429.00Grid Defense Stainless Steel 16" 556 Upper Receiver - Flat Dark Earth FDE 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 Grid Defense 14" M-Lok Free...Sale: $329.00MSRP: $429.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 12" TR MLOK RAIL - BLACK
Sale: $199.99MSRP: $299.00ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 12" TR MLOK RAIL 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 Carbine...Sale: $199.99MSRP: $299.00 -
ALWAYS ARMED Jester 10.5" 5.56 NATO UPPER RECEIVER - BLACK
$279.00ALWAYS 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 10.5" 1:7 Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Carbine...$279.00 -
On Sale
GHOST 16" 5.56 MID LENGTH RIFLE KIT - BLACK
Sale: $429.00MSRP: $499.00GHOST 16" 5.56 MID LENGTH RIFLE KIT - BLACK Hard Coat Black Anodized Chambered in 5.56 NATO 16" 1:7 Twist 4150 M4 Black Nitride Barrel 14" Ghost Firearms Free Float M-LOK Rail A2 Muzzle Device Mil-Spec 7075-T6 Upper Receiver Mil-Spec Lower Parts...Sale: $429.00MSRP: $499.00