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.
-
On Sale
Ghost Elite 16" Upper 5.56 Nato Blue Titanium
Sale: $269.00MSRP: $349.00Ghost Firearms Elite 16" 5.56 Upper - Blue Titanium Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 16" 1:7 Twist 4150 M4 Barrel Black Nitride Carbine Length Gas System Ghost Firearms 14" M-Lok Free Float Hand Guard Ghost...Sale: $269.00MSRP: $349.00 -
On Sale
Ghost Elite 16" Upper 5.56 Nato OD Green
Sale: $269.00MSRP: $349.00Ghost Firearms Elite 16" 5.56 Upper - OD Green Made in the USA Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 16" 1:7 Twist 4150 M4 Barrel Black Nitride Carbine Length Gas System Ghost Firearms 14" M-Lok Free...Sale: $269.00MSRP: $349.00 -
On Sale
Ghost Elite 10.5" Upper 5.56 Nato - OD Green
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5" 5.56 Upper - OD Green OD Green Cerakote Finished Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 10.5" 1:7 Twist 4150 M4 Barrel Black Nitride Carbine Length Gas System Ghost Firearms...Sale: $259.00MSRP: $329.00 -
On Sale
16" 5.56mm with 14" M-Lok Rifle Kit - Blue Titanium
Sale: $449.00MSRP: $599.00Ghost Firearms 16" 5.56 Rifle Kit - Blue Titanium Blue Titanium Cerakote Finish Chambered in 5.56/.223 (5.56x45mm) M16 Bolt Carrier Group Mil-spec Charging Handle A2 Flash Hider 16" 1:7 Twist 4150 Chrome Moly Steel Barrel Black...Sale: $449.00MSRP: $599.00 -
On Sale
Ghost Elite 10.5" Upper 5.56 Nato Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5" 5.56 Upper - Blue Titanium Made in the USA Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 10.5" 1:7 4150 M4 Barrel Black Nitride Mil-spec Upper Receiver with Carbine Length Gas System Ghost...Sale: $259.00MSRP: $329.00 -
On Sale
Grid Defense 10.5" 5.56 Flash Can Upper Receiver - OD Green
Sale: $329.00MSRP: $399.00GRID DEFENSE 10.5" 5.56 FLASH CAN UPPER RECEIVER - OD GREEN Finished in OD Green Cerakote 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 System .750 Low...Sale: $329.00MSRP: $399.00 -
On Sale
Ghost Fireams Elite 10.5" Upper .300 Blackout - OD Green
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5".300 - OD Green OD Green Cerakote Finished Chambered in .300 Blackout (7.62x35) A2 Flash Hider 10.5" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas System Ghost Firearms 9"...Sale: $259.00MSRP: $329.00 -
On Sale
Ghost Elite 7.5" Upper 5.56 Nato Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms 7.5"5.56 Upper - Blue Titanium Blue Titanium Cerakote Finished Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 7.5" 1:7 Twist 4150 M4 Barrel Black Nitride Pistol Length Gas System Ghost Firearms...Sale: $259.00MSRP: $329.00 -
On Sale
Ghost Firearms Elite 10.5" Upper .300 Blackout - Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5" .300 Blackout Upper Receiver- Blue Titanium Blue Titanium Cerakote Finished Ghost Firearms 10.5" Upper Chambered in .300 Blackout (7.62x35) A2 Flash Hider 10.5" 1:8 Twist 4150 Light HBar Barrel Black...Sale: $259.00MSRP: $329.00 -
On Sale
Ghost Firearms Elite 7.5" Upper .300 Blackout Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" .300 - Blue Titanium Chambered in .300 Blackout (7.62x35) 7.5" Upper A2 Flash Hider 7.5" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas System Ghost Firearms 7" M-Lok Free Float...Sale: $259.00MSRP: $329.00 -
On Sale
Ghost Firearms 16" 5.56mm with 14" M-Lok Rifle Kit - OD Green
Sale: $449.00MSRP: $599.00Ghost Firearms 16" Rifle Kit - OD Green OD Green Cerakote Finish Chambered in 5.56/.223 (5.56x45mm) M16 Bolt Carrier Group Mil-spec Charging Handle A2 Flash Hider 16" 1:7 Twist 4150 Chrome Moly Steel Barrel Black...Sale: $449.00MSRP: $599.00 -
On Sale
Ghost Firearms Elite 7.5" Upper .300 Blackout - OD Green
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5".300 Upper - OD Green OD Green Cerakote Finished Chambered in .300 Blackout (7.62x35) A2 Flash Hider 7.5" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas System Ghost Firearms 7"...Sale: $259.00MSRP: $329.00 -
On Sale
Grid Defense 7.5" 5.56 Flash Can Upper Receiver - OD Green
Sale: $329.00MSRP: $399.00Grid Defense OD Green 7.5" 5.56 Flash Can Upper Finished in Magpul Olive Drab Green Cerakote 7075-T6 Mil Spec 5.56 Upper Receiver Chambered in 5.56x45 NATO 1:7 Twist 7.5" 4150 M4 Barrel - Black Nitride 9" Grid Defense Octagon M Lok Rail Dimpled...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 7.5" .300 Blackout Flash Can Upper Receiver - Blue Titanium
Sale: $329.00MSRP: $399.00Grid Defense 7.5" .300 Blackout Upper Receiver - Blue Titanium Finished in Blue Titanium Cerakote Made in the USA Mil-spec 7075-T6 Upper Receiver Chambered in .300 Blackout (7.62x35) 1:8 Twist 4150 Light HBar Barrel - Black Nitride Dimpled Flash Can 9"...Sale: $329.00MSRP: $399.00 -
On Sale
Ghost Firearms 7.5" 9mm with 7" M-Lok Pistol Kit - Blue Titanium
Sale: $449.00MSRP: $699.00Ghost Firearms 7.5" Pistol Kit - Blue Titanium Blue Titanium Cerakote Finish Chambered in 9mm 9mm Bolt Carrier Group (Colt and Glock cut) Mil-spec Charging Handle A2 Flash Hider 1/2x36 Thread Pattern 7.5" 1:10 Twist 4150 Chrome...Sale: $449.00MSRP: $699.00 -
On Sale
Ghost Firearms 16" 9MM Rifle Kit - Blue Titanium
Sale: $459.00MSRP: $729.00GHOST FIREARMS 16" 9MM RIFLE KIT Finished in Blue Titanium Cerakote Chambered in 9x19 Para 16" 1:10 Twist 4150 Light HBar Black Nitride Barrel 1/2x36 Thread Pattern 14" Ghost Firearms Free Float M-LOK Rail A2 Muzzle Device Mil-Spec 7075-T6 Upper...Sale: $459.00MSRP: $729.00 -
On Sale
Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Magpul OD Green
Sale: $329.00MSRP: $399.00Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Magpul OD Green Magpul OD Green Cerakote Finish Chambered in .300 Blackout 14" M-Lok Quad Rail 16" 1:8 4150 Barrel - Black Nitride Pistol Length Gas System A2 Flash Hider Mil-Spec...Sale: $329.00MSRP: $399.00 -
Ghost Elite 10.5" 5.56 Nato OD Green w/ Stainless Steel Upgrade & Nickel Boron BCG black charging handle
$449.00Ghost Firearms Elite 10.5" 5.56 Complete Upper - OD Green Made in the USA Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider Upgraded Stainless Steel 416R 10.5" 1:7 Twist M4 Barrel Carbine Length Gas System Ghost Firearms 9"...$449.00 -
On Sale
Ghost Firearms 10.5" 5.56 Flash Can Upper Receiver Pistol Kit - Blue Titanium
Sale: $399.00MSRP: $599.00Ghost Firearms 10.5" Flash Can Upper Receiver Pistol Build Kit Finished in Blue Titanium Cerakote Milspec 7075-T6 Upper Receiver 10.5" 1:7 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO .750 Low Profile Gas Block Carbine Length Gas System...Sale: $399.00MSRP: $599.00 -
On Sale
Grid Defense Stainless Steel 16" 5.56 Upper Receiver - OD Green
Sale: $329.00MSRP: $429.00Grid Defense Stainless Steel 16" 556 Upper Receiver - OD Green OD Green Cerakote Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 16" 1:7 Twist 416R Stainless Steel Barrel - M4 Profile Carbine Length Gas System Grid Defense 14" M-Lok Free...Sale: $329.00MSRP: $429.00