select fire

[Double Tapper]

Does some one know if it is the slide or the lower frame trigger
that give you full auto function on the m199. My m190 has three
positive click positions but only semi fire.So do I order the slide or
trigger part to get select fire?.

[Mantelope]

It's a combination of interaction between both the slide and the trigger components in the frame.

[Double Tapper]

There is a little nub that pushes the trigger disconnect down.
But if I remove it I might loose my semi and full auto only.
Do you have a picture or know of a picture of the inside
of the slide?.