Grid Defense

Grid Defense Suppressor Ready 16" 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 14"...

Grid Defense 18" 5.56 NATO Rifle Length Upper Receiver Chambered in 5.56 NATO 14" Free Float M-Lok Rail 18" 1:7 Twist Government Profile 4150 Barrel - Black Nitride Rifle Length Gas...

Grid 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...

Grid 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...

Grid Defense 16" 5.56 Upper Receiver - Gold Finished in FX Gold Cerakote Chambered in 5.56x45 NATO 14" M-Lok Rail 16" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System A2 Flash...

Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Gold Finished in Cerakote FX Gold 5.56 Upper Receiver 7075-T6 Mil-Spec Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride Chambered...

Grid Defense 16" 5.56 Upper Receiver With 12" Rail - Pink Champagne Pink Champagne Cerakote Finish Chambered in 5.56 1:7 Twist Rate 1/2x28 TPI Thread Pitch 12" Free Float M-Lok Rail 16" 1:7 4150 M4...

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 7.5" 5.56 Upper Receiver - Tequila Sunrise Mil-Spec Dust Cover and Forward Assist Finished in Tequila Sunrise Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 4150 M4 Barrel - Black...

Grid Defense 16" 5.56 Upper Receiver With 12" Rail - Tequila Sunrise Tequila Sunrise Cerakote Finish Chambered in 5.56 1:7 Twist Rate 1/2x28 TPI Thread Pitch 12" Free Float M-Lok Rail 16" 1:7 4150...

Grid Defense Stainless Steel 10.5" 5.56 Upper Receiver - Black Hard Coat Black Anodized Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 10.5" 1:7 Twist 416R Stainless Steel Barrel...

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 AR-15 Upper Receiver - Pink Champagne Pink Champagne Cerakote Finish Pink Champagne Complete Upper Chambered in 5.56x45 NATO 14" M-Lok Rail 16" 1:7 4150 M4 Barrel - Black...

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 Stainless Steel 16" 556 Upper Receiver - Black  Hard Coat Black Anodized Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 16" 1:7 Twist 416R Stainless Steel Barrel - M4...

Grid Defense 16" 5.56 Upper Receiver - Black Premium AR upper receiver, the new 5.56 AR upper from Grid Defense.With hard coat black anodized. Chambered in 5.56x45 NATO Skeletonized Upper...

Grid Defense 7.5" 9MM Upper Receiver - Pink Champagne Finished in Pink Champagne Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 M4 Barrel - Black Nitride 7"...

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

Grid Defense 16" 5.56 Quad Rail Upper Receiver With Timber Creek Red Accessories - Blue Titanium Grid Defense 16" 5.56 Quad Rail Upper Receiver - Blue Titanium Blue Titanium Cerakote Finish...