So what is the Airsoft Machine Gun Theory? The GMR talks about this in this High Ready Clips video... "The Green Mountain Rangers discuss the role and implementation of a extended magazine machine weapon in force on force airsoft. This weapon system has intrinsic assumptions which can limit the user and the potential if not approached from an objective, strategic mindset. The team examines the fundamentals and considerations of various types including M249 SAW/MK46, M60/MK43 and M240. MG Theory is another layer in the airsoft discipline which appropriate understanding and knowledge can achieve powerful results."