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 BX SERIES UPPER RECEIVER - BLACK
Sale: $199.00MSRP: $299.00ALWAYS ARMED 16" 5.56 NATO BX SERIES 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...Sale: $199.00MSRP: $299.00 -
On Sale
ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - FDE
Sale: $219.00MSRP: $319.00ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - FDE Made in the USA Magpul FDE 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 Black Nitride...Sale: $219.00MSRP: $319.00 -
On Sale
ALWAYS ARMED 16" UPPER RECEIVER COMBO DEAL - 5.56 NATO/.300 BLACKOUT
Sale: $315.00MSRP: $558.00Always 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 ...Sale: $315.00MSRP: $558.00 -
On Sale
Grid Defense 16" 5.56 Quad Rail Upper Receiver - FDE
Sale: $329.00MSRP: $399.00Grid Defense 16" 5.56 Quad Rail Upper Receiver - FDE FDE Cerakote Finish Chambered in 5.56 NATO A2 Flash Hider 16" 1:7 Twist 4150 M4 Barrel - Black Nitride Carbine Length Gas System Grid Defense 14" M-Lok Free Float Quad Rail Grid Defense Mil-Spec 7075...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 5.56 Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" 5.56 AR-15 Upper Receiver - Burnt Bronze Burnt Bronze Cerakote Finish Burnt Bronze Complete Upper 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...Sale: $329.00MSRP: $399.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO RIFLE KIT WITH BI-POD AND SIGHTS - BLACK ANODIZED
Sale: $349.00MSRP: $598.49ALWAYS ARMED 16" 5.56 NATO RIFLE KIT WITH BI-POD AND SIGHTS - 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...Sale: $349.00MSRP: $598.49 -
On Sale
Grid Defense 16" 5.56 Upper Receiver - Blue Titanium
Sale: $329.00MSRP: $399.00Grid Defense 16" 5.56 Upper Receiver - Blue Titanium Blue Titanium 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 ReceiverSale: $329.00MSRP: $399.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLACK
Sale: $249.00MSRP: $299.00ALWAYS ARMED 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLACK Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:7 Twist 416R Stainless Steel Barrel Chambered in 5.56 NATO Carbine Length Gas System ...Sale: $249.00MSRP: $299.00 -
On Sale
Ghost Elite 16" Upper 5.56 Nato With Matching Flash Can - FDE
Sale: $299.00MSRP: $369.00Ghost Firearms Elite 16" 5.56 Upper Receiver With Flash Can - FDE Ghost Elite 16 Upper Chambered in 5.56x45 NATO (5.56/.223) 5.5" Flash Can finished in FDE 16" 1:7 Twist 4150 M4 Barrel Black Nitride 1/2x28 Muzzle Thread...Sale: $299.00MSRP: $369.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO 1:7 MID LENGTH UPPER RECEIVER WITH 12" TR MLOK RAIL
Sale: $199.99MSRP: $299.00ALWAYS ARMED 16" 5.56 NATO 1:7 MID LENGTH 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...Sale: $199.99MSRP: $299.00 -
On Sale
Grid Defense 16" 5.56 Quad Rail Upper Receiver - Tungsten Gray
Sale: $329.00MSRP: $399.00Grid Defense 16" 5.56 Quad Rail Upper Receiver - Tungsten Gray Tungsten Gray 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 BX SERIES UPPER RECEIVER - TITANIUM
Sale: $219.00MSRP: $319.00ALWAYS ARMED 16" 5.56 NATO BX 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...Sale: $219.00MSRP: $319.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER 12" RAIL - BLACK
Sale: $179.00MSRP: $289.00ALWAYS ARMED 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER 12" RAIL - BLACK Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:7 Twist 416R Stainless Steel Barrel Chambered in 5.56 NATO Carbine...Sale: $179.00MSRP: $289.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO TR SERIES WITH TRINITY FORCE SIGHTS RIFLE KIT - BLACK ANODIZED
Sale: $349.00MSRP: $519.00Always Armed 16" 5.56 NATO TRX With Trinity Force Sights 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...Sale: $349.00MSRP: $519.00 -
On Sale
ALWAYS ARMED OCTO SERIES 16" 5.56 NATO RIFLE KIT - BLACK
Sale: $349.00MSRP: $469.00ALWAYS ARMED OCTO SERIES 16" 5.56 NATO 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 16" 5.56 NATO UPPER RECEIVER - ZOMBIE GREEN
Sale: $219.00MSRP: $319.00Always Armed 16" 5.56 NATO Upper Receiver - Zombie 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 System .750...Sale: $219.00MSRP: $319.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 12" M-LOK RAIL, POP UP SIGHTS AND ANGLED FOREGRIP
Sale: $249.00MSRP: $329.00ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 12" M-LOK RAIL, POP UP SIGHTS AND ANGLED FOREGRIP Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:7 Twist 4150 Steel Barrel Chambered in 5.56...Sale: $249.00MSRP: $329.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 15" M-LOK QUAD RAIL - BURNT BRONZE
Sale: $219.00MSRP: $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...Sale: $219.00MSRP: $299.00 -
On Sale
ALWAYS ARMED OCT2 SERIES 16" 5.56 NATO RIFLE KIT - BLACK
Sale: $349.00MSRP: $469.00ALWAYS ARMED OCT2 SERIES 16" 5.56 NATO 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 16" 5.56 NATO UPPER RECEIVER WITH 15" M-LOK QUAD RAIL - FDE
Sale: $219.00MSRP: $329.00ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER WITH 15" M-LOK QUAD RAIL - FDE Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Free Floating MLOK Quad Rail Magpul Flat Dark Earth Cerakote Finish Carbine Length Gas System A2 Muzzle Device 1:7 Twist...Sale: $219.00MSRP: $329.00