Hi
As will said, many parts that are available on the DM series of markers can not be straight transferred on to a PMR. The electronic components are quite different, and not interchangeable.
There are many items available for the PMR that will make it feel more like a fully spec DM or PM. Such as the UL frame, on/off purging airport, UL barrel and clamping feednecks.
There are also many PMR specific upgrades to help change the appearance of your PMR and to help increase your performance. Such as back caps. eye covers, trigger guards and both the 'Edge trigger' and the 'UL Trigger'.
Contact your local DYE authorised dealer for more information and pricing.
Ash Chaplen
DYE Europe