AR-15 | AR-10
Grid Defense is the first stop for your next AR15 build with our wide variety of barreled upper receivers to choose from. We offer a multitude of options from barrel length, color, handguard designs, and caliber. Whether you are a beginner or experienced gunsmith our uppers are designed to be easy to expand while staying cost friendly. Check out our Upper and Lower parts for everything else you need to complete your build.
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On Sale
ALWAYS ARMED 16" 5.56 NATO RIFLE KIT - RIDGEWAY BLUE
Sale: $379.00MSRP: $529.00Always Armed 16" 5.56 NATO Rifle Kit - Ridgeway Blue Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:7 or 1:8 Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Carbine Length Gas System ...Sale: $379.00MSRP: $529.00 -
On Sale
ALWAYS ARMED 16" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE
Sale: $219.00MSRP: $319.00Always Armed 16" 5.56 NATO Upper Receiver - Ridgeway Blue 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 10.5" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE
Sale: $209.00MSRP: $299.00Always Armed 10.5" 5.56 NATO Upper Receiver - Ridgeway Blue 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 ...Sale: $209.00MSRP: $299.00 -
On Sale
ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - RIDGEWAY BLUE
Sale: $219.00MSRP: $319.00Always Armed 16" 300 Blackout Upper Receiver - Ridgeway Blue Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:8 Twist 4150 Barrel with Black Nitride Finish Chambered in 300 Blackout Pistol Length Gas System ...Sale: $219.00MSRP: $319.00 -
On Sale
ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - RIDGEWAY BLUE
Sale: $209.00MSRP: $299.00Always Armed 7.5" 300 Blackout Upper Receiver - Ridgeway Blue Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 7.5" 1:8 Twist 4150 Barrel with Black Nitride Finish Chambered in .300 Blackout Pistol Length Gas...Sale: $209.00MSRP: $299.00 -
On Sale
ALWAYS ARMED 10.5" 7.62X39 UPPER RECEIVER - RIDGEWAY BLUE
Sale: $209.00MSRP: $299.00Always Armed 10.5" 7.62X39 Upper Receiver - Ridgeway Blue Made in the USA Mil-Spec 7075 T6 7.62X39 Upper Receiver with Dust Cover and Forward Assist 10.5" 1:10 Twist 4150 Barrel with Black Nitride Finish Chambered in 7.62X39 Carbine Length...Sale: $209.00MSRP: $299.00 -
On Sale
ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - RIDGEWAY BLUE
Sale: $219.00MSRP: $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...Sale: $219.00MSRP: $319.00