by Guy J. Sagi posted on February 1, 2011 Guns Support NRA Shooting Illustrated DONATE MGI Hydra Marck-15 Modular Rifle In this article .223 Rem., 9 mm, AR-15, MGI, semi-auto rifles Related Stories Colt Match Target M4 Gallery Mossberg MMR Steyr AUG/A3 SA USA Gallery Ruger Mini-14 Steyr AUG/A3 SA USA Most Popular Review: Walther PDP Compact Steel Frame First Look: Kel-Tec PR57 Pistol SHOT Show 2025 Range Day Roundup AR Lower-Receiver Build: Trigger Group Installation Updating The "Pie Chart" Target First Look: Staccato HD Pistols