Grid Defense

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

Grid Defense 18" 6.5 Creedmoor Billet Upper - OD Green Upper Specifications Billet Upper Receiver Machined from 6061 Aluminum Fits DPMS Gen 1 Lower Receivers Made in the USA High Profile 15"...

Grid Defense 16" 8.6 Blackout Billet Upper - OD Green 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 AR-9 80% Lower Receiver - OD Green Finished in OD Green Cerakote Machined from 6061 billet aluminum Compatible with any Glock style small frame pistol calibers Compatible with...

Grid Defense AR-10 80% Lower Receiver Without Fire/Safe - OD Green Machined from 6061-T6 Billet Aluminum Made in house in the USA Flared and Broached Magwell Finished in OD Green Cerakote Does...

Grid Defense AR-15 80% Lower Receiver without Fire/Safe Engravings - OD Green Machined from 7075-T6 Aluminum Forging Finished in OD Green Cerakote Flared and broached magazine well Rear upper...

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

Grid Defense 10.5" 9mm Upper Receiver - OD Green Finished in Olive Drab Green 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 - OD Green Magpul OD Green Cerakote Finish Chambered in 350 Legend A2 Flash Hider 20" 1:16 Twist 4150 Barrel - Black Nitride Carbine Length Gas...

Grid Defense 15" AR-10 Handguard - Magpul OD Green Made in the USA Finished in Magpul OD Green Cerakote High Profile DPMS Pattern 6000 series aluminum extrusion Freefloat handguard MIL-SPEC...

Grid Defense Mil-Spec Carbine Buffer Tube Kit - OD Green Made in the USA Compatible with M4 Type Butt Stocks 6 Position Carbine Buffer Tube Machined from 7075-T6 Aluminum End Plate Castle...

Grid Defense 10.5" 5.56 Upper Receiver - Periwinkle Finished in Periwinkle Cerakote Chambered in 5.56x45 NATO 7075-T6 Milspec Upper Receiver 10.5" 1:7 Twist 4150 Steel M4 Barrel - Black Nitride .750...

Grid Defense 7.5" 5.56 Upper Receiver - Periwinkle Finished in Periwinkle Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7"...

Grid Defense 20" .308 Upper Receiver - OD Green 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...

Grid Defense 16" .308 Winchester Billet Upper - OD Green 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 - OD Green 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 - Tungsten Gray Milspec 7075-T6 Upper Receiver 9" 4150 Black Nitride Barrel Pencil Lightweight Profile Barrel 1:16 Twist Rate 1/2x28 Thread Pattern 7" Grid...

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

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

Grid Defense 16" .450 Bushmaster Upper Receiver - OD Green Finished in Olive Drab Green Cerakote Chambered in .450 Bushmaster 14" Free Floating M-Lok Handrail 16" 4150 Black Nitride...