Ruger SR45 Pistol, .45 Auto, 4.25 inch Barrel

The Ruger SR45 is a full-sized, striker-fired, polymer-framed semi-automatic pistol chambered in .45 Auto (.45 ACP). While your request mentions a 4.25-inch barrel, the factory standard full-size production model actually features a 4.5-inch cold hammer-forged barrel. Introduced in 2013 as a heavy-hitting extension of the SR-series, it brings modern, slim ergonomics to a traditionally bulky caliber. Much like its 9mm predecessor (the SR9), the SR45 is engineered with a remarkably narrow grip width (just 1.27 inches overall), making it exceptionally comfortable for a double-stack .45 ACP handgun. Built with an integrated trigger safety blade, an internal striker blocker, a visual/tactile loaded chamber indicator flag, and a magazine disconnect safety.