Two-piece eye cover (PM6 has a single one over the top), Dye Airport (PM6 has the Proto airport), on/off for the air, LPR located at the rear of the marker instead of the front, DM6 has more angular milling.Yeah, the same, except the DM comes with a Hyper 2 reg, ultralite barrel, sticky grips, roller trigger, external trigger adjustment, and an UL frame, and the PM doesnt have any of those.