WHAT DOES SMITH & WESSON M&P15 SPORT II SEMI-AUTO RIFLE MEAN?

My past 12 months as a significant competitor was Practically 20 years ago—I was among the last fellas I understood who was even now capturing a M1A .308. I was a Superior Learn and Distinguished Rifleman and gained two 1000 property regional services rifle championships in the course of my time and saw no reason to vary horses.The knob on the B-