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.
-
Out of stockOn Sale
ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - PINK CHAMPAGNE
Sale: $219.00MSRP: $319.00ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - PINK CHAMPAGNE Made in the USA Pink Champagne 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 -
Out of stockOn Sale
Grid Defense 7.5" 9mm Upper Receiver - Pink Champagne
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 9MM Upper Receiver - Pink Champagne Finished in Pink Champagne Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length Gas System...Sale: $299.00MSRP: $379.00 -
Out of stockOn Sale
Grid Defense 7.5" .300 Blackout Upper Receiver - Pink Champagne
Sale: $299.00MSRP: $379.00Grid Defense 7.5" .300 Blackout Upper Receiver - Pink Champagne Finished in Pink Champagne Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:8 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length...Sale: $299.00MSRP: $379.00 -
Out of stockOn Sale
Grid Defense 7.5" 5.56 Upper Receiver - Pink Champagne
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 5.56 Upper Receiver - Pink Champagne Finished in Pink Champagne Cerakote AR15 Skeletonized Upper 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...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Pink Champagne
Sale: $329.00MSRP: $399.00Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in Pink Champagne 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...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 5.56 Upper Receiver - Pink Champagne
Sale: $329.00MSRP: $399.00Grid Defense 16" 5.56 AR-15 Upper Receiver - Pink Champagne Pink Champagne Cerakote Finish Pink Champagne 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...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 5.56 Upper Receiver With 12" Rail - Pink Champagne
Sale: $329.00MSRP: $399.00Grid Defense 16" 5.56 Upper Receiver With 12" Rail - Pink Champagne Pink Champagne Cerakote Finish Chambered in 5.56 1:7 Twist Rate 1/2x28 TPI Thread Pitch 12" Free Float M-Lok Rail 16" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System A2...Sale: $329.00MSRP: $399.00