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 7.5" 7.62x39 Upper Receiver - Black
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 7.62x39 Upper Receiver - Black Anodized Made in The USA Hard Coat Black Anodized Finish Mil Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 Light HBAR Barrel - Black...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense 7.5" 7.62x39 Upper Receiver - Blue Titanium
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 7.62x39 Upper Receiver - Blue Titanium Made in The USA Mil Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 Light HBAR Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail...Sale: $299.00MSRP: $379.00 -
Out of stockOn Sale
Grid Defense 9" .22LR Flash Can Upper Receiver - Tungsten Gray
Sale: $329.00MSRP: $399.00Grid Defense 9" .22LR Flash Can Upper Receiver - Tungsten Gray Milspec 7075-T6 Upper Receiver 9" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread...Sale: $329.00MSRP: $399.00 -
Out of stockOn Sale
Grid Defense GX2 7.5" .300 Blackout Flash Can Upper Receiver - FDE
Sale: $329.00MSRP: $399.00Grid Defense GX2 7.5" .300 Blackout Flash Can Upper Mil-Spec 7075-T6 Upper Receiver 7.5" 1:8 Twist 4150 M4 Barrel - Black Nitride Chambered in .300 Blackout 9" Grid Defense GX2 Octagon M-Lok Rail...Sale: $329.00MSRP: $399.00 -
Out of stock
Grid Defense GX2 7.5" 5.56 Flash Can Upper Receiver - Tungsten Gray
$399.00Grid Defense GX2 7.5" 5.56 NATO Flash Can Upper Mil-Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO 9" Grid Defense GX2 Octagon M-Lok Rail Dimpled...$399.00 -
Out of stock
Grid Defense GX2 7.5" 9MM Flash Can Upper Receiver - Blue Titanium
$399.00Grid Defense GX2 7.5" 9MM Flash Can Upper Mil-Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 Barrel - Black Nitride Chambered in 9X19 Para 9" Grid Defense GX2 Octagon M-Lok Rail Dimpled Flash Can ...$399.00 -
On Sale
Grid Defense Stainless Steel 16" .223 Wylde Upper Receiver - Tungsten Gray
Sale: $329.00MSRP: $399.00Grid Defense Stainless Steel 16" .223 Wylde Upper Receiver - Tungsten Gray Tungsten Gray Cerakote Finish Chambered in .223 Wylde 16" 416R Stainless Steel Barrel 1:8 Twist Rate 1/2x28 TPI Thread...Sale: $329.00MSRP: $399.00 -
Out of stockOn Sale
Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $429.00Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - Burnt Bronze Burnt Bronze Cerakote Finish Chambered in .300 Blackout (7.62x35) Stainless Steel A2 Flash Hider 16" 1:8 Twist 416R...Sale: $329.00MSRP: $429.00 -
Out of stockOn Sale
Grid Defense Suppressor Ready 16" .300 Blackout Upper Receiver
Sale: $349.00MSRP: $429.00Grid Defense Suppressor Ready 16" .300 Blackout Upper Upper Specifications Mil-Spec Upper Receiver Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 14"...Sale: $349.00MSRP: $429.00 -
Aero Precision 16" 9mm Upper Receiver - Black
$590.00Aero Precision 16" 9mm Upper Receiver - Black EPC-9 Upper Receiver Chambered in 9mm 1:10 Twist Barrel 15" ATLAS S-ONE Handguard 16" CMV Barrel Prod$590.00 -
Out of stock
ALWAYS ARMED 16" .300 BLACKOUT BX SERIES STAINLESS STEEL UPPER RECEIVER WITH AXE BRAKE - TITANIUM
$349.00ALWAYS ARMED 16" .300 BLACKOUT BX SERIES STAINLESS STEEL UPPER RECEIVER Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:8 Twist 416R Stainless Steel Barrel...$349.00 -
Out of stockOn Sale
ALWAYS ARMED 16" .308 WIN UPPER RECEIVER WITH 12" M-LOK HAND GUARD - BLACK
Sale: $299.00MSRP: $429.00ALWAYS ARMED 16" .308 WIN UPPER RECEIVER WITH 12" M-LOK RAIL - BLACK DPMS Pattern Upper Receiver Dust Cover and Forward Assist 16" 4150 HBAR Contour Barrel - Black Nitride Mid Length Gas System...Sale: $299.00MSRP: $429.00 -
On Sale
ALWAYS ARMED JESTER 16" 9MM RIFLE KIT - BURNT BRONZE
Sale: $349.00MSRP: $509.00Always Armed Jester 16" 9mm Rifle Kit - Burnt Bronze 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...Sale: $349.00MSRP: $509.00 -
Out of stockOn Sale
ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT UPPER RECEIVER - TEQUILA SUNRISE
Sale: $219.00MSRP: $319.00ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT UPPER RECEIVER - TEQUILA SUNRISE Made in the USA Tequila Sunrise Cerakote Finish Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist...Sale: $219.00MSRP: $319.00 -
On Sale
ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT UPPER RECEIVER - TUNGSTEN GRAY
Sale: $219.00MSRP: $319.00ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT UPPER RECEIVER - TUNGSTEN GRAY Made in the USA Tungsten Gray Cerakote Finish Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist 15"...Sale: $219.00MSRP: $319.00 -
Out of stockOn Sale
Ghost 16" .308 Winchester Billet Rifle Kit - Blue Titanium
Sale: $599.00MSRP: $729.00Ghost 16" .308 Winchester Billet Rifle Kit - Blue Titanium Billet DPMS Pattern High Profile Upper 16" 4150 Chrome Moly HBAR Contour Barrel Mid Length Gas System Chambered in .308...Sale: $599.00MSRP: $729.00 -
On Sale
GHOST 16" .450 BUSHMASTER RIFLE KIT - BLACK
Sale: $429.00MSRP: $499.00GHOST 16" .450 BUSHMASTER RIFLE KIT - BLACK Hard Coat Black Anodized Finish Chambered in 450 Bushmaster 16" 4150 Chrome Moly Barrel 1:24 Twist Rate 11/16x24 TPI Thread Pitch 14" Free Float...Sale: $429.00MSRP: $499.00 -
On Sale
GHOST 16" .450 BUSHMASTER RIFLE KIT - OD GREEN
Sale: $449.00MSRP: $519.00GHOST 16" .450 BUSHMASTER RIFLE KIT - OD GREEN Finished in OD Green Cerakote Chambered in 450 Bushmaster 16" 4150 Chrome Moly Barrel 1:24 Twist Rate 11/16x24 TPI Thread Pitch 14" Free Float...Sale: $449.00MSRP: $519.00 -
On Sale
Ghost 16" 5.56 Mid Length with 11" Rail Rifle Kit - FDE
Sale: $449.00MSRP: $599.00Ghost Firearms 16" 5.56 Mid Length Rifle Kit - FDE Flat Dark Earth (FDE) Cerakote Finish Chambered in 5.56/.223 (5.56x45mm) M16 Bolt Carrier Group Mil-spec Charging HandleSale: $449.00MSRP: $599.00 -
Out of stockOn Sale
GHOST 7.5" 9MM STAINLESS STEEL PISTOL KIT - BLACK
Sale: $399.00MSRP: $599.00GHOST 7.5" 9MM STAINLESS STEEL PISTOL KIT - BLACK Chambered in 9x19 Para A2 Birdcage Flash Hider 7.5" 1:10 Twist 416R Stainless Steel Barrel 1/2x36 Thread Pattern Ghost Firearms 7" M-Lok Free...Sale: $399.00MSRP: $599.00