Grid Defense

Grid Defense 20" .308 Upper Receiver - FDE DPMS Pattern upper 20" 4150 Chrome Moly Barrel Rifle Gas System Chambered in .308 Winchester 1:10 Twist Rate 5/8x24 Thread Pattern Axe Brake Muzzle Device...

Grid Defense 16" .308 Winchester Billet Upper - FDE Billet DPMS High Profile Pattern upper 16" 4150 chrome moly barrel Mid-length gas system Chambered in .308 Winchester 1:10 Twist...

Grid Defense 9" .22LR Flash Can Upper Receiver - FDE Milspec 7075-T6 Upper Receiver 9" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread Pattern 9" Grid...

Grid Defense 9" .22LR Upper Receiver - FDE Milspec 7075-T6 Upper Receiver 9" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread Pattern 7" Grid Defense...

Grid Defense Stainless Steel 10.5" .223 Wylde Upper Receiver - FDE Finished in Flat Dark Earth Cerakote Chambered in .223 Wylde 10.5" 416R Stainless Steel Barrel  1:7 Twist Rate 1/2x28...

Grid Defense 16" .450 Bushmaster Upper Receiver - FDE Hard Coat Flat Dark Earth Finish Chambered in .450 Bushmaster 14" Free Floating M-Lok Handrail 16" 4150 Black Nitride Barrel 1:24 Twist...

Grid Defense 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...

Grid Defense 16" .22LR Upper Receiver - FDE Milspec 7075-T6 Upper Receiver 16" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread Pattern 14" Grid...

Grid Defense 18" 350 Legend Upper Receiver - Flat Dark Earth FDE Cerakote Finish Chambered in 350 Legend A2 Flash Hider 18" 1:16 Twist 4150 Barrel - Black Nitride Carbine Length Gas System 5/8x24...

Grid Defense 16" 5.56 Mid Length Upper Receiver - FDE Magpul Flat Dark Earth Cerakote Finish Chambered in 5.56x45 NATO 14" M-Lok Rail 16" 1:7 4150 M4 Barrel - Black Nitride Mid Length Gas...

Grid Defense 16" 5.56 NATO Lightweight Quad Rail Upper Receiver - FDE FDE Cerakote Finish Chambered in 5.56 NATO A2 Flash Hider 16" 1:7 Twist Pencil Profile Barrel Mid Length Gas System .625 Low...

Grid Defense 16" 5.56 American Flag Dust Cover Upper Receiver - Flat Dark Earth Upper Receiver Magpul Flat Dark Earth Cerakote Finish Chambered in 5.56x45 NATO 14" M-Lok Rail 16" 1:7 4150...

Grid Defense 16" 9mm Stainless Steel Upper Receiver - FDE Finished in Flat Dark Earth Cerakote Milspec 7075-T6 Upper Receiver 16" 416R Stainless Steel Barrel with 1:10 Twist Rate 1/2x36 Thread...

Grid Defense 7.5" 7.62x39 Upper Receiver - FDE Mil Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 Light HBAR Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length Gas System A2...

Grid Defense 5.5" 9mm FDE Upper Receiver with Burnt Bronze Flash Can Upper And Rail Finished in Magpul FDE Cerakote 5.5" 1:10 Twist 4150 Light HBAR Barrel - Black Nitride Made in the USA 7" Grid...

Grid 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...

Grid 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...

Grid Defense 7.5" .300 Blackout Upper Receiver  Finished in Magpul Flat Dark Earth Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:8 Twist 4150 Light HBAR Barrel - Black Nitride 7" Grid Defense...

Grid Defense 16" 5.56 Quad Rail Upper Receiver - FDE FDE Cerakote Finish Chambered in 5.56 NATO A2 Flash Hider 16" 1:7 Twist 4150 M4 Barrel - Black Nitride Carbine Length Gas System Grid Defense 14"...

Grid Defense 16" 300 Blackout Quad Rail Upper Receiver - FDE FDE Cerakote Finish Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel - Black Nitride Pistol...