Grid Defense

Grid Defense 20" 6.5 Grendel Upper Receiver - Tungsten Gray Upper Specifications Mil-Spec Upper Design Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 14"...

Grid Defense 18" 6.5 Creedmoor Billet Upper - Tungsten Gray Upper Specifications Billet Upper Receiver Machined from 6061 Aluminum Fits DPMS Gen 1 Lower Receivers Made in the USA High Profile...

Grid Defense 16" 8.6 Blackout Billet Upper - Blue Titanium Billet DPMS High Profile Pattern upper 16" 4150 chrome moly barrel Carbine length gas system Chambered in 8.6 Blackout 1:10 Twist...

Grid Defense 16" 8.6 Blackout Billet Upper - Tungsten Gray Billet DPMS High Profile Pattern upper 16" 4150 chrome moly barrel Carbine length gas system Chambered in 8.6 Blackout 1:10 Twist...

Grid Defense 18" 6mm ARC Upper Receiver - Tungsten Gray Finished in Tungsten Gray Cerakote Chambered in 6mm ARC 14" Free Float M-Lok Rail 18" 4150 Heavy Profile Barrel - Black Nitride 1:8...

Grid Defense 10.5" 9mm Upper Receiver - Tungsten Gray Finished in Tungsten Gray Cerakote Mil Spec 7075-T6 Upper Receiver 10.5" 9MM Barrel Chrome Moly Vanadium 1:10 Twist Rate Straight Profile...

Grid Defense 20" 350 Legend Upper Receiver - Tungsten Gray Tungsten Gray Cerakote Finish Chambered in 350 Legend A2 Flash Hider 20" 1:16 Twist 4150 Barrel - Black Nitride Carbine Length Gas...

Grid Defense 20" .308 Upper Receiver - Tungsten Gray 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...

Grid Defense 16" .308 Winchester Billet Upper - Tungsten Gray 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 - Tungsten Gray Milspec 7075-T6 Upper Receiver 9" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread...

Grid Defense Stainless Steel 10.5" .223 Wylde Upper Receiver - Tungsten Gray Finished in Tungsten Gray Cerakote Chambered in .223 Wylde 10.5" 416R Stainless Steel Barrel  1:7 Twist...

Grid Defense 16" .450 Bushmaster Upper Receiver - Tungsten Gray Finished in Tungsten Gray Cerakote Chambered in .450 Bushmaster 14" Free Floating M-Lok Handrail 16" 4150 Black Nitride...

Grid 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...

Grid 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 18" 350 Legend Upper Receiver - Tungsten Gray Tungsten Gray Cerakote Finish Chambered in 350 Legend A2 Flash Hider 18" 1:16 Twist 4150 Barrel - Black Nitride Carbine Length Gas System...

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

Grid Defense 7.5" 7.62x39 Upper Receiver - Tungsten Gray Chambered in 7.62x39 Mil Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 Light HBAR Barrel - Black Nitride 7" Grid Defense Octagon...

Grid Defense 5.5" 9mm Tungsten Gray Upper Receiver with Blue Titanium Flash Can Finished in Tungsten Gray Cerakote Made in the USA Blue Titanium Cerakote Dimpled Flash Can 7" Grid Defense Octagon...

Grid Defense Stainless Steel 7.5" 5.56 Upper Receiver Tungsten Gray Cerakote Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 7.5" 1:7 Twist 416R Stainless Steel Barrel - M4 Profile...

Grid Defense GX2 7.5" 7.62X39 Flash Can Upper Mil-Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 M4 Barrel - Black Nitride Chambered in 7.62X39 9" Grid Defense GX2 Octagon M-Lok Rail Dimpled Flash...