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
ALWAYS ARMED 7.5" STAINLESS STEEL 9MM UPPER RECEIVER - BLACK
Sale: $209.00MSRP: $299.00Build a high-performance pistol caliber carbine or AR-9 pistol with the Always Armed 7.5" Stainless Steel 9mm Upper Receiver in Black. Designed for close-quarters maneuvers, target practice, and...Sale: $209.00MSRP: $299.00 -
ALWAYS ARMED Jester 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLACK
$329.00ALWAYS ARMED Jester 16" 5.56 NATO STAINLESS STEEL UPPER RECEIVER - BLACK Made in the USA$329.00 -
On Sale
ALWAYS ARMED JESTER 16" 7.62x39 RIFLE KIT - FDE
Sale: $463.00MSRP: $529.00Always Armed Jester 16" 7.62x39 Rifle Kit - FDE 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 in...Sale: $463.00MSRP: $529.00 -
Out of stockOn Sale
Ghost 16" .308 Winchester Billet Rifle Kit - OD Green
Sale: $599.00MSRP: $729.00Ghost 16" .308 Winchester Billet Rifle Kit - OD Green Billet DPMS Pattern High Profile Upper 16" 4150 Chrome Moly HBAR Contour Barrel Mid Length Gas System Chambered in .308 Winchester 1:10...Sale: $599.00MSRP: $729.00 -
On Sale
GHOST 16" .450 BUSHMASTER RIFLE KIT - FDE
Sale: $449.00MSRP: $519.00GHOST 16" .450 BUSHMASTER RIFLE KIT - FDE Finished in Flat Dark Earth 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" .450 BUSHMASTER RIFLE KIT - TUNGSTEN GRAY
Sale: $449.00MSRP: $519.00GHOST 16" .450 BUSHMASTER RIFLE KIT - TUNGSTEN GRAY Finished in Tungsten Gray Cerakote Chambered in 450 Bushmaster 16" 4150 Chrome Moly Barrel 1:24 Twist Rate 11/16x24Â TPI Thread Pitch 14"...Sale: $449.00MSRP: $519.00 -
On Sale
Ghost 16" 5.56 Mid Length with 11" Rail Rifle Kit - OD Green
Sale: $443.33MSRP: $599.00Ghost Firearms 16" 5.56 Mid Length Rifle Kit -Â OD Green Finished in Olive Drab Green Cerakote Chambered in 5.56/.223 (5.56x45mm) M16 Bolt Carrier Group Mil-spec Charging HandleÂSale: $443.33MSRP: $599.00 -
Out of stockOn Sale
Ghost 18" .308 Winchester Billet Rifle Kit - Burnt Bronze
Sale: $609.00MSRP: $739.00Ghost 18" .308 Winchester Billet Rifle Kit - Burnt Bronze 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" 350 Legend Rifle Kit - Burnt Bronze
Sale: $449.00MSRP: $519.00Ghost 18" 350 Legend Rifle Kit - Burnt Bronze Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 18" 1:16 Twist 4150 Barrel with Black Nitride Finish Chambered in...Sale: $449.00MSRP: $519.00 -
On Sale
Ghost 18" 350 Legend Rifle Kit - Tungsten Gray
Sale: $449.00MSRP: $519.00Ghost 18" 350 Legend Rifle Kit - Tungsten Gray Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 18" 1:16 Twist 4150 Barrel with Black Nitride Finish Chambered in...Sale: $449.00MSRP: $519.00 -
Out of stockOn Sale
Ghost 18" 6mm ARC Rifle Kit - Burnt Bronze
Sale: $449.00MSRP: $519.00Ghost 18" 6mm ARC Rifle Kit - Burnt Brozne Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 18" 1:8 Twist 4150 Barrel with Black Nitride Finish Chambered in...Sale: $449.00MSRP: $519.00 -
Out of stockOn Sale
Ghost 20" .308 Winchester Billet Rifle Kit - Blue Titanium
Sale: $619.00MSRP: $749.00Ghost 20" .308 Winchester Billet Rifle Kit - Blue Titanium 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 -
On Sale
Ghost Firearms Elite 7.5" Upper 7.62x39 - Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" 7.62x39 - Blue Titanium Chambered in 7.62x39 7.5" Upper A2 Flash Hider 7.5" 1:10 Twist 4150 Light HBar Barrel Black NitrideSale: $259.00MSRP: $329.00 -
On Sale
GHOST STAINLESS STEEL 10.5" .223 WYLDE PISTOL KIT - BLACK
Sale: $419.00MSRP: $479.00GHOST STAINLESS STEEL 10.5" .223 Wylde RIFLE KIT - BLACK Hard Coat Black Anodized Chambered in .223 Wylde 10.5" 416R Stainless Steel Barrel 1:7 Twist Rate 1/2x28 TPI Thread Pitch 9" Free...Sale: $419.00MSRP: $479.00 -
On Sale
GHOST STAINLESS STEEL 16" .223 WYLDE RIFLE KIT - OD GREEN
Sale: $449.00MSRP: $599.00GHOST STAINLESS STEEL 16" .223 Wylde RIFLE KIT - OD GREEN Finished in Magpul OD Green Cerakote Chambered in .223 Wylde 16" 416R Stainless Steel Barrel 1:8 Twist Rate 1/2x28 TPI Thread...Sale: $449.00MSRP: $599.00 -
On Sale
Ghost Vital 16" Black Upper 5.56 NATO With Burnt Bronze 11" Rail
Sale: $259.00MSRP: $329.00Ghost Vital 16" Black Upper 5.56 NATO With 11" Burnt Bronze Rail - Black Chambered in 5.56 NATO 16" 1:7 Twist 4150 Barrel Black Nitride Carbine Length Gas System Ghost Firearms 11" M-Lok&nbsSale: $259.00MSRP: $329.00 -
On Sale
Grid Defense 16" .22LR Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" .22LR Upper Receiver - Burnt Bronze Milspec 7075-T6 Upper Receiver 16" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread Pattern 14" Grid...Sale: $329.00MSRP: $399.00 -
GRID DEFENSE 16" .300 BLACKOUT UPPER RECEIVER WITH 12" RAIL, MAGPUL AFG AND TF SIGHTS - BLACK
$455.45GRID DEFENSE 16" .300 BLACKOUT UPPER RECEIVER WITH 12" RAIL, MAGPUL AFG AND TF SIGHTS Hard Coat Black Anodized Chambered in 300 Blackout (7.62x35) 12" M-Lok Rail 16" 1:8 4150 Light HBar Barrel -...$455.45 -
Out of stockOn Sale
Grid Defense 16" .308 Winchester Billet Upper - Burnt Bronze
Sale: $429.00MSRP: $569.00Grid Defense 16" .308 Winchester Billet Upper - Burnt Bronze Billet DPMS High Profile Pattern upper 16" 4150 chrome moly barrel Mid-length gas system Chambered in .308 Winchester 1:10 Twist...Sale: $429.00MSRP: $569.00 -
On Sale
Grid Defense 18" 350 Legend Upper Receiver - Burnt Bronze
Sale: $349.00MSRP: $419.00Grid Defense 18" 350 Legend Upper Receiver - Burnt Bronze Burnt Bronze Cerakote Finish Chambered in 350 Legend A2 Flash Hider 18" 1:16 Twist 4150 Barrel - Black Nitride Carbine Length Gas System...Sale: $349.00MSRP: $419.00