The M1911 is a single-action, semi-automatic, magazine-fed, recoil-operated pistol chambered for the .45 ACP cartridge, which served as a standard-issue sidearm. The gun included larger ejection port, a shortened trigger, a longer grip-safety spur and slightly shaved hammer spur to prevent hammer bite, serrated front sight, a curved mainspring housing, simplified checkered grips (although diamond grips still appeared on some), and relief cuts around the trigger guard on the frame.
Used by a few characters throughout the series, most noticeably by the Cousins. The Cousins' 1911s are nickel-plated. The gun is also shown in several promotional photos for season three.
During the Cousins' attack on Hank Schrader, Hank manages to get Leonid's 1911 and battles Marco with it, ultimately using Leonid's 1911 and a hollow-point bullet nicknamed "Black Death" to kill Marco. However, Marco severely wounds Hank with his matching gun before being killed.