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
Ghost Elite 16" Upper 5.56 Nato - Tungsten Gray
Sale: $269.00MSRP: $349.00Ghost Firearms Elite 16"5.56 AR15 Upper Receiver - Tungsten Gray Tungsten Gray Cerakote Finished Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 16" 1:7 Twist 4150 M4 Barrel Black Nitride Carbine Length Gas...Sale: $269.00MSRP: $349.00 -
On Sale
Ghost Firearms Elite 16" Upper 7.62X39 - TUNGSTEN GRAY
Sale: $269.00MSRP: $349.00ELITE 16" UPPER RECEIVER - TUNGSTEN GRAY GHOST FIREARMS 7.62X39 UPPER Tungsten Gray Cerakote Finished Chambered in 7.62x39 A2 Flash Hider 16" 1:10 Twist 4150 Light HBar Barrel Black Nitride Carbine Length Gas...Sale: $269.00MSRP: $349.00 -
On Sale
Ghost Firearms 16" 300 AAC Blackout with 14" M-Lok Rifle Kit - Tungsten Gray
Sale: $449.00MSRP: $599.00Ghost Firearms 16".300 AAC Rifle Kit -Tungsten Gray Tungsten Gray Cerakote Finish Chambered in 300 AAC Blackout (7.62x35mm) M16 Bolt Carrier Group Mil-spec Charging Handle A2 Flash Hider 16" 1:8 Twist 4150 Chrome Moly Steel Barrel Black...Sale: $449.00MSRP: $599.00 -
On Sale
Grid Defense 16" 300 Blackout Upper Receiver - Tungsten Gray
Sale: $329.00MSRP: $399.00Grid Defense 16" 300 Blackout Upper Receiver - Tungsten Gray Tungsten Gray Cerakote Finish Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel - Black Nitride Pistol Length Gas System Grid Defense 14" M-Lok Free...Sale: $329.00MSRP: $399.00