the mag is laid out like it is for ease of use, breakdown, and assembly. The original RT automag is made with an integrated air system through the rail, but it is pretty much the same problem because the air system is still not internal. If you wanted to do this you would need to fill the original valve hole and tap a new one in the bottom, you would have to have a custom rail made, here is an extremely rough diagram. it kind of shows how you would have to work around the sear. getting rid of the sear isnt an option as stated before...the mag is THE sear tripper. its isnt a non balanced spool valve like a matrix. the spring pushes the bolt forward. here we go.
the dark red is the sear.
the purple is where you would have to run the air lines, which would require a taller rail with enough room for air fittings and a custom made sear.
the on off has to be avoided, as well as the sear as a whole.