Hi, does anyone know where i can get an adjustable stop to mount on the fences on my makita chopsaw, and what exact name this type of part goes by that i can search better?
You can normally only get them to fit on the extendable legstands that most manufacturers sell although you may find one that has a universal fitting.
Try searching google for something like flip stop, length stop or mitre saw stop.
Someone like Axminster or Rutlands may be worth a look as well.