I'm a happy Mini G owner with the Shuster gas plug / smith brake combo. I find that after a couple of mags, my Smith brake is wobbly and the plug needs tightening.
Here comes the dumb question. . . .what tool do you guys use to tighten the plug and keep it tightened? The M1 combo tool doesn't fit and I haven't found a flat head screwdriver with a wide enough blade (that doesn't require it's own carry case:-).