A previous owner must have used epoxy on the screw for a Novak sight on an S&W.
It shoots two inches right at 25 meters, so I want to drift the rear sight.
I cannot get the screw to move. Allen wrenches round out.
I have tried acetone with no effect.
I have not tried heat. I have no good way to do that and am afraid of messing up the gun.
Any other suggestions?