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 STAINLESS STEEL 16" .223 WYLDE RIFLE KIT - BLACK
Sale: $429.00MSRP: $499.00GHOST STAINLESS STEEL 16" .223 Wylde RIFLE KIT - BLACK Hard Coat Black Anodized Chambered in .223 Wylde 16" 416R Stainless Steel Barrel 1:8 Twist Rate 1/2x28 TPI Thread Pitch 14" Free Float M-LOK Handrail Stainless A2 Muzzle Device Mil-Spec...Sale: $429.00MSRP: $499.00 -
On Sale
Grid Defense 6" .300 Blackout Flash Can Upper Receiver - Black
Sale: $329.00MSRP: $399.00Grid Defense 6" .300 Blackout Pistol Upper Receiver - Black Chambered in .300 Blackout 6" 1:7 Twist 4150 Light HBar Barrel - Black Nitride 7075-T6 Milspec Upper Receiver Pistol Length Gas System .750 Low Profile Gas Block Dimpled Flash...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense HEX Stainless Steel 16" .223 Wylde Upper Receiver - Burnt Bronze
Sale: $339.00MSRP: $409.00Grid Defense HEX Stainless Steel 16" .223 Wylde Upper Receiver - Burnt Bronze Burnt Bronze Cerakote Finish Chambered in .223 Wylde 16" 416R Stainless Steel Barrel 1:8 Twist Rate 1/2x28 TPI Thread Pitch Black A2 Muzzle Device Carbine Length Gas...Sale: $339.00MSRP: $409.00 -
On Sale
ALWAYS ARMED 7.5" 9MM PISTOL KIT - SIG PINK
Sale: $399.00MSRP: $579.00Always Armed 7.5" 9mm Rifle Kit - Sig Pink Made in the USA Mil-Spec Lower Parts Kit 7.5" 1:10 Twist 4150 Barrel with Black Nitride Finish Chambered in 9X19 Para A2 Flash Hider 7" Free Float M-LOK Hand Guard Bolt Carrier Group Charging Handle ...Sale: $399.00MSRP: $579.00 -
On Sale
GHOST STAINLESS STEEL 16" .223 WYLDE RIFLE KIT -BLUE TITANIUM
Sale: $449.00MSRP: $599.00GHOST STAINLESS STEEL 16" .223 Wylde RIFLE KIT - BLUE TITANIUM Finished in Blue Titanium Cerakote Chambered in .223 Wylde 16" 416R Stainless Steel Barrel 1:8 Twist Rate 1/2x28 TPI Thread Pitch 14" Free Float M-LOK Handrail Stainless A2 Muzzle...Sale: $449.00MSRP: $599.00 -
Andro Corp 5" 5.56 Upper Receiver - Black
$415.00Andro Corp 5" 5.56 Upper Receiver - Black 4150 CMV Melonite 1:5 Twist Rate M4 Feed Ramps Micro Length Gas System .750 Low Profile Gas Block QPQ Corrosion Resistant Finish A2 Flash Hider 1/2x28 Threaded Muzzle 5" M-LOK Hand Guard 7075-T6...$415.00 -
On Sale
GHOST STAINLESS STEEL 16" .223 WYLDE RIFLE KIT - FDE
Sale: $449.00MSRP: $599.00GHOST STAINLESS STEEL 16" .223 Wylde RIFLE KIT - FDE Flat Dark Earth Cerakote Chambered in .223 Wylde 16" 416R Stainless Steel Barrel 1:8 Twist Rate 1/2x28 TPI Thread Pitch 14" Free Float M-LOK Handrail A2 Muzzle Device Mil-Spec 7075-T6 Upper...Sale: $449.00MSRP: $599.00 -
On Sale
GHOST STAINLESS STEEL 10.5" .223 WYLDE PISTOL KIT - BLUE TITANIUM
Sale: $399.99MSRP: $579.00GHOST STAINLESS STEEL 10.5" .223 WYLDE RIFLE KIT - BLUE TITANIUM Finished in Blue Titanium Cerakote Chambered in .223 Wylde 10.5" 416R Stainless Steel Barrel 1:7 Twist Rate 1/2x28 TPI Thread Pitch 9" Free Float M-LOK Handrail A2 Muzzle...Sale: $399.99MSRP: $579.00 -
On Sale
Grid Defense 20" 6.5 Grendel Upper Receiver - FDE
Sale: $329.00MSRP: $419.00Grid Defense 20" 6.5 Grendel Upper Receiver - FDE Upper Specifications Mil-Spec Upper Design Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 14" Free Float Handguard Finished in Magpul Flat Dark Earth...Sale: $329.00MSRP: $419.00 -
On Sale
ALWAYS ARMED 4.5" .22LR TRX SERIES UPPER RECEIVER - FDE
Sale: $239.00MSRP: $359.00ALWAYS ARMED 4.5" .22LR TRX SERIES UPPER RECEIVER - FDE Chambered in .22LR Finished in FDE Cerakote Made In The USA 4.5" 1:16 Twist 4140 CrMo Barrel Salt bath nitride finished barrel 1/2"-28 TPI Medium taper barrel profile 4.25" TRX Series...Sale: $239.00MSRP: $359.00 -
On Sale
Ghost Vital 7.5" 5.56 Stainless Steel Pistol Kit
Sale: $419.00MSRP: $479.00Ghost Firearms Vital 7.5" 5.56 Upper Stainless Steel - Black Chambered in 5.56x45 NATO (5.56/.223) A2 Birdcage Flash Hider - Black 7.5" 1:7 Twist 416R Stainless Steel Barrel Pistol Length Gas System Ghost Firearms 7" M-Lok Free...Sale: $419.00MSRP: $479.00