Les Baer's Concept IV is a government-length 1911 configured with a flat MSH, extended controls, and Baer's full accuracy package in a carry-duty format. One of several Concept-series models, each representing a specific configuration preferred by professional carry shooters. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 8 Year introduced: 2002, USA Weight: 39.5 oz Overall length: 8.75" Status: Active Intended use: Duty Carry, Home Defense, Competition