Garand Thumb tries the Wilson Combat P320, which is basically a reconfigured SIG Sauer P320 pistol. According to Wilson Combat, their gunsmiths and engineers have completely reworked a SIG SAUER P320 chassis and unfinished SIG manufactured compact slide into a “Professional” size, full-size grip with 3-slot accessory rail. This resulted into a portable, full-capacity 9mm handgun.