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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ALWAYS ARMED 10.5" .300 BLACKOUT TR SERIES WITH TRINITY FORCE SIGHTS PISTOL KIT - BLACK ANODIZED
$489.00Always Armed 10.5" .300 Blackout TRX Series with Trinity Force Sights Pistol Kit - Black Anodized Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 10.5" 1:8...$489.00 -
On Sale
ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - SIG PINK
Sale: $209.00MSRP: $299.00Always Armed 7.5" 300 Blackout Upper Receiver - Sig Pink Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 7.5" 1:8 Twist 4150 Barrel with Black Nitride Finish...Sale: $209.00MSRP: $299.00 -
Out of stockOn Sale
ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT UPPER RECEIVER - ZOMBIE GREEN
Sale: $219.00MSRP: $319.00ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT UPPER RECEIVER - ZOMBIE GREEN Made in the USA Zombie Green Cerakote Finish Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist 15" Free...Sale: $219.00MSRP: $319.00 -
On Sale
Ghost Firearms 7.5" .300 Blackout Flash Can Upper Receiver Pistol Kit - FDE
Sale: $449.00MSRP: $599.00Ghost Firearms 7.5" Flash Can Upper Receiver Pistol Build Kit Finished in Magpul Flat Dark Earth Cerakote Milspec 7075-T6 Upper Receiver 7.5" 1:8 4150 Light HBar Barrel - Black Nitride Chambered in ...Sale: $449.00MSRP: $599.00 -
Ghost Suppressor Ready IHS 5" 5.56 NATO Upper Receiver
$259.00 - $279.00Ghost Suppressor Ready IHS 5.5" 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 4.25" Free...$259.00 - $279.00 -
On Sale
Grid Defense 16" 300 Blackout Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" 300 Blackout Upper Receiver - Burnt Bronze Burnt Bronze Cerakote Finish Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel Pistol Length Gas...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 7.5" .300 Blackout Upper Receiver - Blue Titanium
Sale: $299.00MSRP: $379.00Grid Defense 7.5" .300 Blackout Upper Receiver Finished in Blue Titanium Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:8 Twist 4150 Light HBAR Barrel - Black Nitride 7" Grid Defense Octagon M-Lok...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense 7.5" 5.56 Upper Receiver - Tungsten Gray
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 5.56 Upper Receiver Finished in Tungsten Gray Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense OctagoSale: $299.00MSRP: $379.00 -
Out of stockOn Sale
Grid Defense 9" .22LR Flash Can Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 9" .22LR Flash Can Upper Receiver - Burnt Bronze Milspec 7075-T6 Upper Receiver 9" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread Pattern 9"...Sale: $329.00MSRP: $399.00 -
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...Sale: $329.00MSRP: $429.00 -
On Sale
ALWAYS ARMED 16" 7.62X39 UPPER RECEIVER - SIG PINK
Sale: $219.00MSRP: $319.00Always Armed 16" 7.62X39 Upper Receiver - Sig Pink Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:10 Twist 4150 Barrel with Black Nitride Finish Chambered...Sale: $219.00MSRP: $319.00 -
On Sale
Always Armed 4.5" 9MM Gen2 Flash Can Pistol Kit - Titanium
Sale: $399.00MSRP: $499.00Always Armed 4.5" 9MM Gen2 Flash Can Pistol Kit - Titanium Titanium Cerakote Finish Chambered in 9mm 9mm Bolt Carrier Group (Colt and Glock cut) Mil-spec Charging HandleSale: $399.00MSRP: $499.00 -
On Sale
Ghost 18" .308 Winchester Billet Upper - Burnt Bronze
Sale: $409.00MSRP: $539.00Ghost 18" .308 Winchester Billet Upper - Burnt Bronze 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 stockOn Sale
Ghost 20" .308 Winchester Billet Rifle Kit - OD Green
Sale: $619.00MSRP: $749.00Ghost 20" .308 Winchester Billet Rifle Kit - OD Green Billet DPMS Pattern High Profile Upper 20" 4150 Chrome Moly HBAR Contour Barrel Rifle Gas System Chambered in .308 Winchester 1:10 Twist...Sale: $619.00MSRP: $749.00 -
Out of stockOn Sale
Ghost 20" .308 Winchester Billet Upper - Blue Titanium
Sale: $419.00MSRP: $549.00Ghost AR10 20" 308 Upper - Blue Titanium Billet DPMS Pattern High Profile Upper Receiver 20" 4150 Chrome Moly HBAR Contour Barrel Rifle Gas System Chambered in .308 Winchester 1:10 Twist Rate 5/8x24...Sale: $419.00MSRP: $549.00 -
On Sale
Ghost Firearms 10.5" .300 Blackout Flash Can Upper Receiver Pistol Kit - Tungsten Gray
Sale: $449.00MSRP: $599.00Ghost Firearms 10.5" Flash Can Upper Receiver Pistol Build Kit Finished in Tungsten Gray Cerakote Milspec 7075-T6 Upper Receiver 10.5" 1:8 4150 Light HBAR Barrel - Black Nitride Chambered in .300...Sale: $449.00MSRP: $599.00 -
On Sale
Ghost Firearms 16" 9MM Rifle Kit- BURNT BRONZE
Sale: $459.00MSRP: $729.00GHOST FIREARMS 16" 9MM RIFLE KIT Finished in Burnt Bronze Cerakote Chambered in 9x19 Para 1/2x36 Thread Pattern 16" 1:10 Twist 4150 Light HBar Black Nitride Barrel 14" Ghost Firearms Free...Sale: $459.00MSRP: $729.00 -
On Sale
Ghost Firearms 16" 9MM Rifle Kit - OD GREEN
Sale: $459.00MSRP: $729.00GHOST FIREARMS 16" 9MM RIFLE KIT Finished in Magpul OD Green Cerakote Chambered in 9x19 Para 1/2x36 Thread Pattern 16" 1:10 Twist 4150 Light HBar Black Nitride Barrel 14" Ghost Firearms Free Float...Sale: $459.00MSRP: $729.00 -
On Sale
Ghost Firearms 7.5" 5.56mm with 7" M-Lok Pistol Kit - Burnt Bronze
Sale: $379.00MSRP: $579.00Ghost Firearms 7.5" 5.56 Pistol Kit - Burnt Bronze Burnt Bronze Cerakote Finished Chambered in 5.56/.223 (5.56x45mm) M16 Bolt Carrier Group MiSale: $379.00MSRP: $579.00 -
Out of stock
$499.00