Lockestone Industries conceptualizes, develops and manufactures advanced high quality precision CNC parts for the AR-15 weapons platform for the at ho

LockeStone Industries, is the foundation for your ultimate precision tactical AR-15 rifle. Our Billet AR 80% lower receiver was engineered from the ground up to address ergonomic and structural design weaknesses found in standard 80% lower receivers. -CNC machined 7075-T6 aerospace aluminum billet stock -Integrated trigger guard for gloved use and added strength -Enhance tolerances -Mil-Spec hard anodized -Serrated trigger finger index point We are proud to offer products that are...

LockeStone Industries, is the foundation for your ultimate precision tactical AR-15 rifle. Our Billet AR 80% lower receiver was engineered from the ground up to address ergonomic and structural design weaknesses found in standard 80% lower receivers. -CNC machined 7075-T6 aerospace aluminum billet stock -Integrated trigger guard for gloved use and added strength -Enhance tolerances -Mil-Spec hard anodized -Serrated trigger finger index point We are proud to offer products that are 100% MADE IN THE U.S.A.