Range Tec self-improvement training center dedicated to the skills of defense, survival, gun handling, marksmanship, disaster preparedness and tactical mindset. What makes Range Tec different from other ranges? First, our instructors are not your ordinary instructors just out of the military or a police academy, with only a few years of experience lining up students in front of a dirt pile. All my instructors have years of experience as US Army Special Forces (Green Berets), Special Operations, Contractor’s, and law enforcement backgrounds.