Girsan Witness 2311, Single Action, Semi-automatic, 45 ACP, 4.25 Barrel, Polymer Grips, Optic Ready, Far-Dot Optic Included, Blued Finish, Black, 11 Rounds 395050 The Witness 2311 by Girsan was built to be affordable and one of the highest quality double stack 1911s today. Designed to utilize standard double stack 1911 magazines as well as the traditional polymer grip, receiver, and the top end of Girsan 1911 handguns (in 9mm, 45ACP, and 10mm) the Witness 2311 is as versatile as it is revolutionary.