Selling guns to snipers is all in a day's work for one small-town Tennessee family. Ronnie, the designer and businessman at the helm of Barrett firearms manufacturing, and his two children are responsible for creating the M107 sniper rifle. The world's first semi-automatic .50 caliber rifle, the M107s power and precision allow snipers to destroy multiple targets from more than 20 football fields away. NGC goes inside this family of firearm "rock stars."