NI G.I. FM50 AbOut G.I. MilSim G.I. Milsim™ was established in 2009 by Paintball innovators Richmond Italia, Bill Gardner and Adam Gardner. Some truly remarkable designs and engineering have resulted, and the start of a new Paintball revolution has begun. Bringing G.I. Milsim’s creative ambitions to reality called for a deeply seasoned and imaginative engineering group. Smart Parts’ American designers and engineers collaborated with two brilliant designers from Asia and several more from Canada.