Wilson Combat SFT9CM42: The foundation of the SFT9 begins as a solid block of the highest quality T6-7075 Aluminum that is precision machined on computer controlled machining centers until all that remains is the finished one-piece solid frame. The solid frame design is more rugged than other firearm designs with a modular grip/frame construction and thinner, with a width of only 1.155 inches. The reduced diameter of the Wilson Combat Solid Frame along with the Trak grip strap texture improves recoil control and reduces muzzle flip during rapid fire.