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
GRID DEFENSE 10.5" 9MM UPPER RECEIVER - BLUE TITANIUM
Sale: $299.00MSRP: $379.00Grid Defense 10.5" 9mm Upper Receiver - Blue Titanium Finished in Blue Titanium Cerakote Mil Spec 7075-T6 Upper Receiver 10.5" 9MM Barrel Chrome Moly Vanadium 1:10 Twist Rate Straight Profile...Sale: $299.00MSRP: $379.00 -
On Sale
GRID DEFENSE 10.5" 9MM UPPER RECEIVER - TUNGSTEN GRAY
Sale: $299.00MSRP: $379.00Grid Defense 10.5" 9mm Upper Receiver - Tungsten Gray Finished in Tungsten Gray Cerakote Mil Spec 7075-T6 Upper Receiver 10.5" 9MM Barrel Chrome Moly Vanadium 1:10 Twist Rate Straight Profile...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Burnt Bronze Burnt Bronze Cerakote Finish Chambered in .300 Blackout 14" M-Lok Quad Rail 16" 1:8 4150 Barrel - Black Nitride Pistol Length...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 9mm Upper Receiver - Blue Titanium
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Upper Receiver - Blue Titanium Finished in Blue Titanium Cerakote Milspec 7075-T6 Upper Receiver 16" 1:10 Twist 4150 Light HBar Barrel - Black Nitride 1/2x36 Thread Pattern 14"...Sale: $329.00MSRP: $399.00 -
Out of stockOn Sale
Grid Defense 20" .308 Winchester Billet Upper - Black
Sale: $449.00MSRP: $589.00Grid Defense 20" .308 Upper Receiver - Black DPMS Pattern upper 20" 4150 Chrome Moly Barrel Rifle Gas System Chambered in .308 Winchester 1:10 Twist Rate 5/8x24 Thread Pattern Axe Brake...Sale: $449.00MSRP: $589.00 -
Out of stockOn Sale
Grid Defense 20" .308 Winchester Billet Upper - FDE
Sale: $449.00MSRP: $589.00Grid Defense 20" .308 Upper Receiver - FDE DPMS Pattern upper 20" 4150 Chrome Moly Barrel Rifle Gas System Chambered in .308 Winchester 1:10 Twist Rate 5/8x24 Thread Pattern Axe Brake Muzzle Device...Sale: $449.00MSRP: $589.00 -
Out of stockOn Sale
Grid Defense 9" .22LR Flash Can Upper Receiver - Black
Sale: $299.00MSRP: $399.00Grid Defense 9" .22LR Flash Can Upper Receiver - Black Milspec 7075-T6 Upper Receiver 9" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread Pattern 9"...Sale: $299.00MSRP: $399.00 -
On Sale
Grid Defense Suppressor Ready 10.5" 5.56 NATO Upper Receiver
Sale: $319.00MSRP: $399.00Grid Defense Suppressor Ready 10.5" 5.56 NATO Upper Upper Specifications Mil-Spec Upper Receiver Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 9" Free...Sale: $319.00MSRP: $399.00 -
On Sale
ALWAYS ARMED 10.5" 7.62X39 UPPER RECEIVER - SIG PINK
Sale: $209.00MSRP: $299.00Always Armed 10.5" 7.62X39 Upper Receiver - Sig Pink Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 10.5" 1:10 Twist 4150 Barrel with Black Nitride Finish...Sale: $209.00MSRP: $299.00 -
On Sale
ALWAYS ARMED JESTER 16" .300 BLACKOUT RIFLE KIT - FDE
Sale: $379.00MSRP: $529.00Always Armed Jester 16" .300 Blackout Rifle Kit - FDE Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:8 Twist 4150 Barrel with Black Nitride Finish...Sale: $379.00MSRP: $529.00 -
Out of stockOn Sale
Ghost 16" .308 Winchester Billet Rifle Kit - Black
Sale: $579.00MSRP: $709.00Ghost 16" .308 Winchester Billet Rifle Kit - Black Billet DPMS Pattern High Profile Upper 16" 4150 Chrome Moly HBAR Contour Barrel Mid Length Gas System Chambered in .308 Winchester 1:10...Sale: $579.00MSRP: $709.00 -
Out of stockOn Sale
Ghost 18" .308 Winchester Billet Rifle Kit - Tungsten Gray
Sale: $609.00MSRP: $739.00Ghost 18" .308 Winchester Billet Rifle Kit - Tungsten Gray Billet DPMS Pattern High Profile Upper 18" 4150 Chrome Moly HBAR Contour Barrel Rifle Gas System Chambered in .308 Winchester 1:10 Twist...Sale: $609.00MSRP: $739.00 -
On Sale
Ghost 18" .308 Winchester Billet Upper - Blue Titanium
Sale: $409.00MSRP: $539.00Ghost 18" .308 Winchester Billet Upper - Blue Titanium Billet DPMS Pattern High Profile Upper Receiver 18" 4150 Chrome Moly HBAR Contour Barrel Rifle Length Gas System Chambered in .308 Winchester...Sale: $409.00MSRP: $539.00 -
Out of stock
Ghost Firearms Elite Stainless Steel 10.5" Upper .300 Blackout - Blue Titanium
$349.00Ghost Firearms Elite 10.5".300 Stainless Steel Upper Receiver Blue Titanium Cerakote Finished Chambered in .300 Blackout (7.62x35) A2 Flash Hider 10.5" 1:8 Twist 416R Stainless Steel Light HBar...$349.00 -
Ghost IHS 4.5" 9mm Pistol Kit
$449.00 - $469.00Ghost IHS 4.5" Pistol Kit Chambered in 9mm 9mm Bolt Carrier Group (Colt and Glock cut) Mil-spec Charging Handle Stubby Blast Can Muzzle DeviceÂ$449.00 - $469.00 -
Ghost Vital 10.5" 5.56 Upper Receiver with 1:8 Twist Stainless Steel Barrel
$309.00Ghost Vital 10.5" 5.56 Upper Receiver with 1:8 Twist Stainless Steel Barrel Chambered in 5.56x45 NATO (5.56/.223) Stainless Steel A2 Birdcage Flash Hider 10.5" 1:7 Twist 416R Stainless Steel Barrel...$309.00 -
On Sale
Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Blue Titanium
Sale: $329.00MSRP: $399.00Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Blue Titanium Blue Titanium Cerakote Finish Chambered in .300 Blackout 14" M-Lok Quad Rail 16" 1:8 4150 Barrel - Black Nitride Pistol Length...Sale: $329.00MSRP: $399.00 -
Out of stockOn Sale
Grid Defense 16" 8.6 Blackout Billet Upper - Burnt Bronze
Sale: $429.00MSRP: $569.00Grid Defense 16" 8.6 Blackout Billet Upper - Burnt Bronze Billet DPMS High Profile Pattern upper 16" 4150 chrome moly barrel Carbine length gas system Chambered in 8.6 Blackout 1:10 Twist Rate M18x1...Sale: $429.00MSRP: $569.00 -
On Sale
Grid Defense 16" 9mm Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Upper Receiver - Burnt Bronze Finished in Burnt Bronze Cerakote Milspec 7075-T6 Upper Receiver 1/2x36 Thread Pattern 16" 1:10 Twist 4150 Light HBar Barrel - Black Nitride 14"...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 9mm Upper Receiver - Tactical Grape
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Upper Receiver - Tactical Grape Finished in Purple Cerakote Milspec 7075-T6 Upper Receiver 1/2x36 Thread Pattern 16" 1:10 Twist 4150 Light HBar Barrel - Black Nitride 14" Grid...Sale: $329.00MSRP: $399.00