The New ATI AR-15 Pistol
American Tactical Imports (ATI) is now selling an AR-15 pistol based on the company’s Omni-Hybrid lower. The gun is chambered in 5.56 NATO and weighs a mere 4.75 pounds. ATI introduced the Omni polymer lowers in mid-2012 (read my review of them here) and later updated the receivers with a metal insert for high stress…