DRG Manufacturing: How All Of Your AR-15 Parts Are Actually Made
This video provides an in-depth look at the AR-15 component manufacturing process at DRG Manufacturing in Illinois. It details the journey from raw materials like aluminum billets and Carpenter 158 steel to finished parts, including automated bolt carrier group production, precision machining of lower receivers, and barrel rifling. The content highlights the critical role of heat treatment and precision grinding in ensuring component durability and performance.









