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 16" .22LR Upper Receiver - Tungsten Gray
Sale: $329.00MSRP: $399.00Grid Defense 16" .22LR Upper Receiver - Tungsten Gray Milspec 7075-T6 Upper Receiver 16" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread Pattern 14" Grid Defense Octagon M-Lok Rail Tungsten Gray Cerakote...Sale: $329.00MSRP: $399.00 -
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 Brake Mil-Spec 7075-T6 Upper Receiver$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 Length Gas System A2 Flash Hider Mil-Spec 7075-T6...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 Mil-Spec 7075-T6 Upper Receiver Tactical Dynamics Skeleton...$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 M-Lok Rail Milspec 7075-T6 Upper Receiver Carbine Gas...Sale: $329.00MSRP: $399.00 -
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 Device Carbine Length Gas System Low Profile Gas Block Grid...Sale: $349.00MSRP: $419.00 -
On Sale
Grid Defense HEX Stainless Steel 16" .223 Wylde Upper Receiver - FDE
Sale: $339.00MSRP: $409.00Grid Defense HEX Stainless Steel 16" .223 Wylde Upper Receiver - FDE Flat Dark Earth Cerakote Finish Chambered in .223 Wylde 16" 416R Stainless Steel Barrel 1:8 Twist Rate 1/2x28 TPI Thread Pitch Black A2 Muzzle Device Carbine Length Gas...Sale: $339.00MSRP: $409.00 -
On Sale
Grid Defense Stainless Steel 10.5" .223 Wylde Upper Receiver - Burnt Bronze
Sale: $299.00MSRP: $379.00Grid Defense Stainless Steel 10.5" .223 Wylde Upper Receiver - Burnt Bronze Finished in Burnt Bronze Cerakote Chambered in .223 Wylde 10.5" 416R Stainless Steel Barrel 1:7 Twist Rate 1/2x28 TPI Thread Pitch Stainless A2 Muzzle...Sale: $299.00MSRP: $379.00 -
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 Blackout (7.62x35) A2 Muzzle Device Pistol Length Gas...$399.00 -
On Sale
Grid Defense Stainless Steel 10.5" 5.56 Upper Receiver - OD Green
Sale: $299.00MSRP: $399.00Grid Defense Stainless Steel 10.5" 5.56 Upper Receiver Magpul Olive Drab Green Cerakote Finish Chambered in 5.56 NATO Grid Defense Mil Spec 7075 T6 Upper Receiver Grid Defense 9" M-Lok Free Float Hand Guard Carbine Length Gas System 10.5" 1:7...Sale: $299.00MSRP: $399.00 -
Out of stock
ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER WITH TIMBER CREEK DUST COVER AND FORWARD ASSIST - TITANIUM
$408.98ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER Made in the USA Titanium Cerakote Finish Mil-Spec AR15 7075 T6 Upper Receiver Timber Creek Outdoors Blue Anodized Billet Dust Cover Timber Creek Outdoors Blue Anodized Forward Assist 15" Free Float...$408.98 -
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 - OD Green Finished in Olive Drab Green Cerakote Chambered in 5.56/.223 (5.56x45mm) M16 Bolt Carrier Group Mil-spec Charging Handle A2 Flash Hider 16" 1:7 Twist 4150 Chrome Moly Steel Barrel Black...Sale: $443.33MSRP: $599.00 -
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 Float M-LOK Handrail Stainless A2 Muzzle Device Mil-Spec...Sale: $419.00MSRP: $479.00 -
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 Free Float Hand Guard Finished in Burnt...Sale: $259.00MSRP: $329.00 -
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 Float Grid Defense Handguard Available in Hard Coat...$329.00 -
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 - Black Nitride Pistol Length Gas System A2 Flash Hider...$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 Rate 5/8x24 TPI Thread Pitch Axe Brake Muzzle...Sale: $429.00MSRP: $569.00 -
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 Rail Hard Coat Black Anodize A2 Muzzle Device Chambered...Sale: $329.00MSRP: $399.00 -
Out of stock
Grid Defense Stainless Steel 10.5" .300 Blackout Upper Receiver - Tungsten Gray
$399.00Grid Defense 10.5" .300 Blackout Upper Receiver Finished in Tungsten Gray Cerakote Mil-Spec 7075-T6 Upper Receiver 10.5" 1:8 Twist 416R Stainless Steel Barrel Chambered in .300 Blackout (7.62x35) A2 Muzzle Device Pistol Length Gas System 9" Grid Defense...$399.00 -
Grid Defense Suppressor Ready 10.5" 5.56 NATO Upper Receiver
$319.00Grid 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 Float Grid Defense Handguard Available in...$319.00