by Shooting Illustrated Staff posted on October 28, 2010 Guns Support NRA Shooting Illustrated DONATE See photos of the Auto-Ordnance AOM160 M1 Carbine in this gallery. In this article .30 Carbine, Auto-Ordnance, semi-auto rifles Related Stories Auto-Ordnance AOM160 The Truth About Pistons Barrett REC7 Chambered in 5.56 NATO Gallery Benelli MR1 Gallery DPMS Panther 3G1 Gallery Most Popular Marines Ditch 100-Year-Old Marksmanship Standards Tech Wisdom: .300 Ka-Boom Review: Springfield Armory 1911 TRP 4.25-inch CC Getting Serious: Stepping Up Your Marksmanship Skills Affordable Firepower: Five Budget-Friendly AR-15s The Most Popular Guns of 2023