The FN FNX-45 Tactical is a polymer-frame DA/SA pistol in .45 ACP with a 5.3-inch threaded barrel, optics-ready slide, and 15-round capacity. Its combination of high capacity, optics readiness, and .45 ACP power makes it a choice for USPSA Open competitors who prefer a polymer-frame gun, and for IDPA Stock Service Pistol use. Type: Pistol Action: Double/Single-Action Caliber: .45 ACP Capacity: 15 Year introduced: 2012, Belgium/USA Weight: 33.2 oz Overall length: 9.5" Status: Active Intended use: competition, USPSA, IDPA, duty