I need to find parts for the central pneumatic 2in1 floor nailer/stapler... we have the stanley bostitch as well they are similar but not exact.... we need to replace some of the inards and can not find were to get the parts... the type is the blue color one. they have now changed the color to silver and red. and I know there was an orange modle in between. the bostitch has a poppet actuator with three screw holes and the blue gun has four screw holes they will not match up.