by Shooting Illustrated Staff posted on October 31, 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 Tactical 4.15 In this article .45 ACP, self-defense, semi-auto handguns, STI Related Stories STI Sentinel Premier Gallery Detonics Combat Master Evolution Gallery Kimber Custon Crimson Carry II Gallery Regent .45 ACP 1911 Gallery K2 Semi-Auto Pistol imported by EAA Gallery Most Popular New Suppressors for 2025 New Rifle Suppressors for 2025 Review: Kimber 2K11 9mm Pistol New Handguns for 2025 Fit to Fight Personal Defense In Rural America