The FN 545 Tactical is FN's striker-fired .45 ACP pistol, featuring an 18-round double-stack magazine — the highest capacity in a factory .45 ACP striker pistol from a major manufacturer. The Tactical variant includes a threaded barrel, optics-ready slide, and suppressor-height sights. Designed to compete with the Springfield XD-M Elite and Glock 41 in the high-capacity .45 segment. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 18 Year introduced: 2021, Belgium Weight: 36 oz Overall length: 8" Status: Active Intended use: service, tactical, law_enforcement