Developed in partnership with Hilton Yam, founder of 10-8 Performance and retired FBI Special Agent, SWAT team member and Principle Firearms Instructor, the 10-8 Performance Master Class 1911 reflects decades of professional end-user experience. Built on a hand-selected forged carbon steel frame and slide with a forged bull barrel, each pistol is precisely fit and blended. Outfitted with select 10-8 Performance components and the Agency Optic System for modern red-dot mounting, it is offered in 9mm and .45 ACP to meet the demands of professional use.