DM 07 is a very good gun that has that solid feel to it from the off as all the DM range ( DYE MATRIX ) 7 = year ,
Proto Matrix Rail 07 is a different kettle of fish and as the above has stated the eyes are run by a Ribbon going up through the gun, this is very, very Tempremental and can break very easy to which most players that have had these will tell you are a nightmare ! ! but because it`s very similar to the DYE to look at ,most have tried to copy the Dye and put the wire that connects to the eyes ( eyes are important to any good gun ) into the PMR, If you can ? PMR bolt has to go in one way only , ( have to line it up ) where as the Dye is easy , goes in anyway. there is a PMR and there is a PM , the PM is a far, far better gun and I would say that I speak for Most players that had/have a PM > they are the best that Proto ever made and are equal to any DYE, to compare the 2 x guns you mentioned it would be like comparing a Tippman 98 to any EGO, even if you like a Tippman I hope you get my point .. Bluey