Grid Defense

Grid Defense 20" 6.5 Grendel Upper Receiver - Blue Titanium 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 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 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 20" 6.5 Grendel Upper Receiver - Burnt Bronze 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 20" 6.5 Grendel Upper Receiver - FDE 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 20" 6.5 Grendel Upper Receiver - Black Upper Specifications Mil-Spec Upper Design Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 14" Free...