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 LIMITED EDITION 10.5" 5.56 NATO FLASH CAN UPPER WITH STRIKE INDUSTRIES & TIMBER CREEK ACCESSORIES - BURNT BRONZE
$386.94Always Armed 10.5" 5.56 NATO Flash Can Upper Receiver - Burnt Bronze Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 10.5" 1:7 Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Carbine Length Gas...$386.94 -
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" Free Float M-LOK OCTO Series Rail 16" 1:8 Twist Barrel...Sale: $219.00MSRP: $319.00 -
ALWAYS ARMED QUAD MID LENGTH 16" 5.56 NATO RIFLE KIT - FDE
Sale: $409.00MSRP: $639.00ALWAYS ARMED QUAD MIDLENGTH 16" 5.56 NATO RIFLE KIT - FDE Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" Mid Length 1:7 Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Mid Length Gas...Sale: $409.00MSRP: $639.00 -
Always Armed Smith & Wesson Red Limited Edition 10.5" 5.56 NATO Upper Receiver with Blue Strike Industries Accessories
$541.84Always Armed Smith & Wesson Red Limited Edition 10.5" 5.56 NATO Upper Receiver Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 10.5 1:7 Twist 4150 Barrel with Black Nitride Finish Chambered in in 5.56 NATO...$541.84 -
ALWAYS ARMED ULTRALIGHT 16" 5.56 NATO RIFLE KIT - BLACK ANODIZED
Sale: $409.00MSRP: $609.00Always Armed 16" 5.56 NATO Rifle Kit - Black Anodized Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" Pencil 1:7 Twist 4150 Barrel with Black Nitride Finish Chambered in 5.56 NATO Mid Length Gas System .750...Sale: $409.00MSRP: $609.00 -
Ghost 16" .22LR Rifle Kit - FDE
Sale: $499.00MSRP: $619.00Ghost 16" .22LR Rifle Kit - FDE Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 4150 Black Nitride Barrel Lightweight Pencil Profile Barrel 1:16 Twist Rate 1/2x28 TPI Thread Pitch Chambered in .22 Long Rifle...Sale: $499.00MSRP: $619.00 -
Ghost 16" .308 Winchester Billet Rifle Kit - Burnt Bronze
Sale: $599.00MSRP: $729.00Ghost 16" .308 Winchester Billet Rifle Kit - Burnt Bronze Billet DPMS Pattern High Profile Upper 16" 4150 Chrome Moly HBAR Contour Barrel Mid Length Gas System Chambered in .308 Winchester 1:10 Twist Rate 5/8x24 TPI Thread Pitch A2 Flash...Sale: $599.00MSRP: $729.00 -
Ghost 18" .308 Winchester Billet Rifle Kit - FDE
Sale: $609.00MSRP: $739.00Ghost 18" .308 Winchester Billet Rifle Kit - FDE Billet DPMS Pattern High Profile Upper 18" 4150 Chrome Moly HBAR Contour Barrel Rifle Gas System Chambered in .308 Winchester 1:10 Twist Rate 5/8x24 TPI Thread Pitch A2 Flash Hider 15" M-LOK Free Floating...Sale: $609.00MSRP: $739.00 -
Ghost 18" 350 Legend Rifle Kit - OD Green
Sale: $449.00MSRP: $519.00Ghost 18" 350 Legend Rifle Kit - OD Green 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 350 Legend Carbine Length Gas System .750 Low Profile...Sale: $449.00MSRP: $519.00 -
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 350 Legend Carbine Length Gas System .750 Low...Sale: $449.00MSRP: $519.00 -
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 Rate 5/8x24 TPI Thread Pitch A2 Flash Hider 15" M-LOK...Sale: $619.00MSRP: $749.00 -
Ghost 9" .22LR Pistol Kit - Tungsten Gray
Sale: $480.00MSRP: $599.00Ghost 9" .22LR Pistol Kit - Tungsten Gray Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 9" 4150 Black Nitride Barrel Lightweight Pencil Profile Barrel 1:16 Twist Rate 1/2x28 TPI Thread Pitch Chambered...Sale: $480.00MSRP: $599.00 -
Ghost Firearms 7.5" .300 Blackout FDE Upper Receiver with Burnt Bronze Flash Can
$399.00Ghost Firearms 7.5" FDE UPPER RECEIVER WITH BURNT BRONZE FLASH CAN Finished in Flat Dark Earth Cerakote Milspec 7075-T6 Upper Receiver 7.5" 1:8 4150 M4 Barrel - Black Nitride Chambered in .300 Blackout .750 Low Profile Gas Block Pistol Length Gas System...$399.00 -
GHOST FIREARMS 7.5" 5.56 FLASH CAN UPPER RECEIVER WITH BURNT BRONZE 9" RAIL
$349.00GHOST FIREARMS 7.5" 5.56 FLASH CAN UPPER RECEIVER Proudly Made in the USA 7075 T6 Forged Aluminum Mil-Spec AR15 Upper Receiver - Black Anodized 7.5" 1:7 Twist 4150 Steel Barrel Pistol Length Gas System .750 Low Profile Gas Block Hard Coat Black Anodized...$349.00 -
Ghost Firearms Limited Edition 7.5" 5.56 Flash Can Upper with Strike Industries Dust Cover and Timber Creek Forward Assist - Black/FDE
$416.94Ghost Firearms 7.5" Flash Can Upper Receiver Hard Coat Black Anodized Finish Milspec 7075-T6 Upper Receiver 7.5" 1:7 4150 M4 Barrel - Black Nitride Chambered in 5.56x45 NATO .750 Low Profile Gas Block Pistol Length Gas System Ghost Firearms 9" M-Lok...$416.94 -
Ghost IHS 5" Upper 5.56 Nato - FDE
Sale: $259.00MSRP: $329.00Ghost IHS 5" 5.56 Upper - FDE Magpul Flat Dark Earth Upper Receiver Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 5" 1:5 Twist 4150 Chrome Moly Vanadium Barrel 1/2x28 Thread Pitch Micro Length Gas System Ghost 4.25"...Sale: $259.00MSRP: $329.00 -
Ghost IHS 5" Upper 5.56 Nato - OD Green
Sale: $259.00MSRP: $329.00Ghost IHS 5" 5.56 Upper - OD Green Finished in OD Green Cerakote Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 5" 1:5 Twist 4150 Chrome Moly Vanadium Barrel 1/2x28 Thread Pitch Micro Length Gas System Ghost 4.25" Integral...Sale: $259.00MSRP: $329.00 -
Ghost Vital 16" Black Upper 5.56 NATO With Blue Titanium 11" Rail
Sale: $259.00MSRP: $329.00Ghost Vital 16" Black Upper 5.56 NATO With 11" Blue Titanium 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 Blue...Sale: $259.00MSRP: $329.00 -
Ghost Vital 16" Black Upper 5.56 NATO With OD Green 11" Rail
Sale: $259.00MSRP: $329.00Ghost Vital 16" Black Upper 5.56 NATO With 11" OD Green 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 OD Green Ghost...Sale: $259.00MSRP: $329.00 -
Grid Defense 10.5" .300 Blackout Upper Receiver - Tactical Grape
Sale: $299.00MSRP: $379.00Grid Defense 10.5" .300 Blackout Upper Receiver - Tactical Grape Finished in Purple Cerakote Mil-Spec 7075-T6 Upper Receiver 10.5" 1:8 Twist 4150 Steel Barrel - Black Nitride Chambered in .300 Blackout (7.62x35) A2 Muzzle Device Pistol Length Gas System...Sale: $299.00MSRP: $379.00