by Shooting Illustrated Staff posted on October 30, 2010 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. ** STI Sentinel Premier In this article .45 ACP, concealed carry, self-defense, semi-auto handguns, STI Related Stories Detonics Combat Master Evolution Gallery Kimber Custon Crimson Carry II Gallery STI Tactical 4.15 Gallery Olympic Arms Enforcer Gallery Colt New Agent Most Popular 10mm vs. .40 S&W: Similarities, Differences and Uses First Look: Wilson Combat Division 77 Project 1 Ghost Pistol First Shots: Springfield Armory Hellcat OSP .380 Marines Ditch 100-Year-Old Marksmanship Standards Top 5 'Budget-Priced' .50 BMG Rifles What I Didn’t Learn In Special Forces