Is The ‘Ribbon Gun’ The Army’s Next Rifle?

Could the Army’s next service rifle be something with four vertically stacked barrels that was invented in a Colorado Springs man’s garage? (Martin) Grier, a self-described inventor who has worked at a local bed and breakfast, built the new “ribbon gun” with a hobbyist’s tools. It looks like a space-age toy drawn by a fifth-grader. […]