by Guy J. Sagi posted on February 1, 2011 Guns Support NRA Shooting Illustrated DONATE ** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** 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 Concealed Carry: The First Steps New Suppressors for 2025 New Rifle Suppressors for 2025 Review: Kimber 2K11 9mm Pistol New Handguns for 2025 Fit to Fight