I will let Terra answer this one if I mess it up...
In the early days Robarms stated that they had a seperate gas valve for shooting supressors
I think Alex said that he tweaked the ports just a little when he redesigned the new block, but again I would go to Terra for the answer on that. :2cents:
In the early days Robarms stated that they had a seperate gas valve for shooting supressors
I think that they have set it up so that 4, 3 and 2 are very similar. 1 is probably similar to the original #1 setting on the old gas port and S is the one from the silencer gas port.
I think Alex said that he tweaked the ports just a little when he redesigned the new block, but again I would go to Terra for the answer on that. :2cents: