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 First Look: Wilson Combat Division 77 Project 1 Ghost Pistol First Look: ZeroTech Vengeance 3-12x Scope New Reticle Options Top 5 'Budget-Priced' .50 BMG Rifles Marines Ditch 100-Year-Old Marksmanship Standards 10 Budget-Priced .22 Rifles Under $200 10mm vs. .40 S&W: Similarities, Differences and Uses