You could try searching for "Glidden" in the MA gun laws sub-forum. There are some interesting tidbits.
Ron's position on "touching" machine guns (which I have no personal interest in) w/o a MG License is rather telling. It's based on "if the law doesn't say that you can do it, then it's illegal to do that" approach. Hard to say that interpretation is "pro-gun" for lawful citizens. On the other hand, his hard push on PDs to only issue LTC-A (and his preference is unrestricted) does help our side.
Due to his positions (chief, chairman of the firearms committee for MCOPA-the most anti-gun group this side of Brady in MA, I think he's the current president of MCOPA, chairman of the GCAB, etc.), he has to walk a fine line on the gun issues as many chiefs in MA are totally anti and he'd be unlikely to survive in any of his positions with a solid "pro-gun" stance. One has to understand how politics works to appreciate this and that the only way to create change (other than at the point of a gun barrel) is from within.