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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Out of stockOn Sale
Ghost 9" .22LR Pistol Kit - OD Green
Sale: $480.00MSRP: $599.00Ghost 9" .22LR Pistol Kit - OD Green Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 9" 4150 Black Nitride Barrel Lightweight Pencil Profile Barrel 1:16...Sale: $480.00MSRP: $599.00 -
Out of stockOn Sale
Ghost Firearms 10.5" .300 Blackout Flash Can Upper Receiver Pistol Kit - Tactical Grape
Sale: $449.00MSRP: $599.00Ghost Firearms 10.5" Flash Can Upper Receiver Pistol Build Kit Finished in Purple Cerakote Milspec 7075-T6 Upper Receiver 300 Blackout Upper Receiver Pistol Kit 10.5" 1:8 4150 Light HBAR Barrel -...Sale: $449.00MSRP: $599.00 -
On Sale
Ghost Firearms 10.5" 7.62X39 Pistol Kit - Tungsten Gray
Sale: $499.00MSRP: $639.00 Ghost Firearms 10.5" 7.62X39 Pistol Kit - Tungsten Gray Charging handle Complete lower parts kit Pistol buffer tube kit Mil-spec Bolt Carrier Group *****Ammunition Notification***** Ghost...Sale: $499.00MSRP: $639.00 -
Out of stock
GHOST FIREARMS 16" 5.56 FRONT SIGHT UPPER WITH BCG/CH - FDE
$449.00GHOST FIREARMS 16" 5.56 FRONT SIGHT UPPER WITH BCG/CH - FDE Made in the USA 16" 5.56 NATO Barrel BCG and Charging Handle Included Magpul FDE Hand Guard A2 Muzzle Device Black Anodized Mil Spec Upper...$449.00 -
GHOST FIREARMS 7.5" 5.56 FLASH CAN UPPER RECEIVER WITH BLUE TITANIUM 9" RAIL
$349.00GHOST FIREARMS 7.5" 5.56 FLASH CAN UPPER RECEIVER Proudly Made in the USA 7075 T6 Forged Aluminum Mil-Spec AR15 Upper Receiver - Black Anodized 7.5" 1:7 Twist 4150 Steel Barrel Pistol Length Gas...$349.00 -
Out of stockOn Sale
Ghost Firearms 7.5" 9mm Blast Can Upper Receiver - Black
Sale: $279.00MSRP: $329.00Ghost Firearms 7.5" 9mm Flash Can Upper Receiver - Black Proudly Made in the USA Chambered in 9mm 7075 T6 Forged Aluminum Mil-Spec AR15 Upper Receiver 7.5" 1:10 Twist 4150 Barrel 1/2x36 Thread...Sale: $279.00MSRP: $329.00 -
On Sale
GHOST STAINLESS STEEL 16" .223 WYLDE RIFLE KIT - BURNT BRONZE
Sale: $449.00MSRP: $599.00GHOST STAINLESS STEEL 16" .223 Wylde RIFLE KIT - BURNT BRONZE Finished in Burnt Bronze Cerakote Chambered in .223 Wylde 16" 416R Stainless Steel Barrel 1:8 Twist Rate 1/2x28 TPI Thread...Sale: $449.00MSRP: $599.00 -
Out of stock
Ghost Vital 7.5" .300 Blackout Pistol Build Kit With Nickel Boron lower parts kit
$499.00Ghost Firearms Vital 7.5" .300 Upper A2 Birdcage Flash Hider 7.5" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas System Ghost Firearms 7" M-Lok Free Float Hand Guard Ghost...$499.00 -
Grid Defense 16" .223 Wylde Upper Receiver
$329.00Grid Defense 16" .223 Wylde Upper Receiver - Black Upper Specifications Mil-Spec Upper Receiver Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 14" Free...$329.00 -
Out of stock
Grid Defense 16" .300 Quad Rail Upper Receiver with Stainless Steel 1:8 Barrel and AXE Brake - Black
$478.99Grid Defense 16" .300 Quad Rail Upper Receiver Black Anodized Finish Chambered in .300 Blackout 14" M-Lok Quad Rail 16" 1:8 416R Stainless Steel Barrel Pistol Length Gas System Stainless Steel AXE...$478.99 -
On Sale
Grid Defense 16" 5.56 Upper Receiver With 12" Rail - Gold
Sale: $339.00MSRP: $409.00Grid Defense 16" 5.56 Upper Receiver With 12" Rail - Gold Finished in FX Gold Cerakote Chambered in 5.56x45 NATO 12" Free Float M-LOK Handguard 16" 1:7 4150 M4 Barrel - Black Nitride Carbine...Sale: $339.00MSRP: $409.00 -
Out of stock
Grid Defense 16" 5.56 Upper Receiver With Stainless Steel Flash Hider and Skeleton Grip - Tactical Grape
$488.00Grid Defense 16" Upper Receiver Purple Cerakote Finish Chambered in 5.56x45 NATO 14" M-Lok Rail 16" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System Stainless Steel A2 Flash Hider...$488.00 -
On Sale
Grid Defense 16" 7.62x39 Upper Receiver - Tactical Grape
Sale: $329.00MSRP: $399.00Grid Defense 16" 7.62x39 Upper Receiver - Tactical Grape Finished in Purple Cerakote Chambered in 7.62x39 16" 1:10 Twist 4150 Light HBar Barrel - Black Nitride A2 Muzzle Device 14" Free Floating...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 9mm Stainless Steel Upper Receiver - Black
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Stainless Steel Upper Receiver - Black Milspec 7075-T6 Upper Receiver 16" 416R Stainless Steel Barrel with 1:10 Twist Rate 1/2x36 Thread Pattern 14" Grid Defense Octagon M-Lok...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 20" 6.5 Grendel Upper Receiver - OD Green
Sale: $329.00MSRP: $419.00Grid Defense 20" 6.5 Grendel Upper Receiver - OD Green Upper Specifications Mil-Spec Upper Design Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 14" Free...Sale: $329.00MSRP: $419.00 -
On Sale
Grid Defense 20" 6.5 Grendel Upper Receiver - Tungsten Gray
Sale: $329.00MSRP: $419.00Grid Defense 20" 6.5 Grendel Upper Receiver - Tungsten Gray Upper Specifications Mil-Spec Upper Design Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 14"...Sale: $329.00MSRP: $419.00 -
On Sale
Grid Defense 7.5" 7.62x39 Upper Receiver - OD Green
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 7.62x39 Upper Receiver - OD Green Mil Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 Light HBAR Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length Gas...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense HEX 16" 5.56 NATO Upper Receiver - Gold
Sale: $349.00MSRP: $419.00Grid Defense HEX 16" 5.56 NATO Upper Receiver - Gold FX Gold Cerakote Finish Chambered in 5.56 NATO 16" 4150 Nitride Barrel 1:7 Twist Rate 1/2x28 TPI Thread Pitch Black A2 Muzzle...Sale: $349.00MSRP: $419.00 -
Out of stock
Grid Defense Stainless Steel 10.5" .300 Blackout Upper Receiver - Burnt Bronze
$399.00Grid Defense 10.5" .300 Blackout Upper Receiver Premium AR-15 upper Finished in Burnt Bronze Cerakote Mil-Spec 7075-T6 Upper Receiver 10.5" 1:8 Twist 416R Stainless Steel Barrel Chambered in .300...$399.00 -
Out of stock
.308 Winchester 18" Barrel and Bolt Carrier Group Combo
$368.00Ghost .308 Bolt Carrier Group Made in the USA Compatible with DPMS Style AR10 .308 9310 Bolt 8620 Steel Carrier Salt Bath Nitride Finish Ghost 18" AR-10 .308 Barrel 4150 Chromoly...$368.00