I have an agt vulcan 3 .25 caliber with a 500mm barrel. I have a Sumo moderator that I put on to see how it looked, and was wondering if the 580cc 300 bar bottle would fit without going past the end of the shroud? The moderator is just about the same diameter as the shroud and it looks like it will fit. If not a 580 cc maybe one that’s a little shorter, what do you think?