Just got my mislaid flash suppressor back. Thanks, Terra! Actually it's a new one, but that's cool. I've got a couple of questions. First, what's the best way to secure the barrel while torquing it back on? Secondly, it has a washer with a flat side and a cone side. Which side faces the suppressor? Third, I notice that one side of the suppressor is solid. No openings. I'm guessing that goes up? Help!