what is the torque rateing on the gas block screws(s.s.)?

Cajungeo,

I can't believe I never thought of grinding down Allen
wrenches!!!

Here's another idea: find a star drive bit that closely but tightly matches the Allen recess in the screw. With the screw OUT of the gun, and securely held in a vise, align the points of the star bit
with the angles (not the flats) of the Allen screw and tap it home.
Done right, this practically eliminates the problem of stripping.

Oughtsix

"An armed society is a polite society."

It's also a safer society!!!!