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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Out of stock
Grid Defense Limited Edition 5.56 Flash Can Upper Receiver - Tungsten Gray/Red
$510.89Grid Defense Limited Edition 5.56 Flash Can Upper Receiver - Tungsten Gray Finished in Tungsten Gray Cerakote 7075-T6 MilSpec Upper Receiver 7.5" 1:7 Twist 4150 Barrel - Black Nitride Chambered...$510.89 -
Out of stock
Grid Defense Limited Edition 7.5" 5.56 Flash Can Upper With Timber Creek Accessories - Tequila Sunrise
$458.98Grid Defense 7.5" 5.56 NATO Flash Can Upper Receiver - Tequila Sunrise Finished in Tequila Sunrise Cerakote 5.56 Flash Can Upper Made in the USA 1:7 Twist 7.5" 4150 M4 Barrel - Black Nitride 9"...$458.98 -
Out of stock
Grid Defense Limited Edition Stainless Steel 16" 5.56 Upper Receiver with Nickel Boron BCG and Red Strike Industries Accessories
$691.85Grid Defense Limited Edition Stainless Steel 16" 5.56 Upper Receiver Blue Titanium Cerakote Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 16" 1:7 Twist 416R Stainless Steel Barrel -...$691.85 -
On Sale
Grid Defense Stainless Steel 10.5" 5.56 Upper Receiver - Black
Sale: $299.00MSRP: $399.00Grid Defense Stainless Steel 10.5" 5.56 Upper Receiver - Black Hard Coat Black Anodized Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 10.5" 1:7 Twist 416R Stainless Steel Barrel...Sale: $299.00MSRP: $399.00 -
Out of stock
Grid Defense Stainless Steel 16" 5.56 Upper Receiver - Tactical Grape
$429.00Grid Defense Stainless Steel 16" 556 Upper Receiver - Tactical Grape Tactical Grape Cerakote Finish Chambered in 5.56 NATO 5.56 Upper Receiver Stainless Steel A2 Flash Hider 16" 1:7 Twist 416R...$429.00 -
Out of stock
Grid Defense Stainless Steel 7.5" 5.56 Upper Receiver With MBUS Sights - Tungsten Gray
$496.50Grid Defense Stainless Steel 7.5" 5.56 Upper Receiver Tungsten Gray Cerakote Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 7.5" 1:7 Twist 416R Stainless Steel Barrel - M4 Profile...$496.50 -
ALWAYS ARMED 10.5" 5.56 NATO GEN 1 PISTOL KIT
$509.00 - $529.00Always Armed 10.5" 5.56 NATO Gen 1 Pistol Kit 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...$509.00 - $529.00 -
On Sale
ALWAYS ARMED 10.5" 5.56 NATO GEN 1 UPPER RECEIVER
$189.00 - $209.00Always Armed 10.5" 5.56 NATO Gen 1 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...$189.00 - $209.00 -
ALWAYS ARMED 10.5" 5.56 NATO JESTER SERIES UPPER RECEIVER
$289.00 - $309.00Always Armed 10.5" 5.56 NATO Jester Series 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...$289.00 - $309.00 -
On Sale
ALWAYS ARMED 10.5" 5.56 NATO STAINLESS STEEL GEN 1 UPPER RECEIVER
$189.00 - $209.00Always Armed 10.5" 5.56 NATO Stainless Steel Gen 1 Upper Receiver Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 10.5" 1:7 Twist 416R Stainless Steel...$189.00 - $209.00 -
On Sale
ALWAYS ARMED 10.5" 5.56 NATO TR SERIES UPPER RECEIVER
$189.00 - $209.00Always Armed 10.5" 5.56 NATO TR Series 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...$189.00 - $209.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO BR SERIES UPPER RECEIVER
$199.00 - $219.00ALWAYS ARMED 16" 5.56 NATO BR SERIES 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...$199.00 - $219.00 -
ALWAYS ARMED 16" 5.56 NATO GEN 1 RIFLE KIT
$529.00 - $549.00Always Armed 16" 5.56 NATO Gen 1 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...$529.00 - $549.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO GEN 1 UPPER RECEIVER
$199.00 - $219.00Always Armed 16" 5.56 NATO Gen 1 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...$199.00 - $219.00 -
ALWAYS ARMED 16" 5.56 NATO Jester Series Upper Receiver
$309.00 - $329.00ALWAYS ARMED 16" 5.56 NATO Jester Series Upper Receiver Made in the USA 16" 4150 Barrel Chambered in 5.56 NATO 15" Jester Rail Free Floating MLOK Quad Rail Carbine Length Gas System .750 Ga...$309.00 - $329.00 -
ALWAYS ARMED 16" 5.56 NATO MID LENGTH GEN 1 RIFLE KIT
$529.00 - $549.00Always Armed 16" 5.56 NATO Mid Length Gen 1 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...$529.00 - $549.00 -
ALWAYS ARMED 16" 5.56 NATO PENCIL BARREL GEN 1 RIFLE KIT
$529.00 - $549.00Always Armed 16" 5.56 NATO Pencil Barrel Gen 1 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...$529.00 - $549.00 -
ALWAYS ARMED 16" 5.56 NATO QUAD RAIL RIFLE KIT
$549.00 - $569.00Always Armed 16" 5.56 NATO Quad Rail Rifle Kit Made in the USA 16" 4150 Black Nitride Barrel 1:7 Twist Rate Chambered in 5.56 NATO 15" Quad Rail Free Floating MLOK Quad Rail Hard Coat Black Anodized...$549.00 - $569.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO QUAD RAIL UPPER RECEIVER
$209.00 - $229.00Always Armed 16" 5.56 NATO Quad Rail Upper Receiver Made in the USA 16" 4150 Black Nitride Barrel 1:7 Twist Rate Chambered in 5.56 NATO 15" Quad Rail Free Floating MLOK Quad Rail Hard Coat Black...$209.00 - $229.00 -
ALWAYS ARMED 16" 5.56 NATO TR SERIES RIFLE KIT
$529.00 - $549.00Always Armed 16" 5.56 NATO TR Series 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...$529.00 - $549.00