I would also put 3 gauges on it, for the 3 things ( bottle and REG 1 & 2 ) all on the same side of course.
I enlarged the plenum diameter to close the gap between it and the barrel shroud.
Of course not knowing if any of this is possible as i do not have the CAD drawings, and when i do finally get my Maverick i am not about to tear it down and measure it up, not least now were i as a pensioner no longer have access to CNC lathes / mills.
I have a few KG of lead to sling before anything else,,,,,, okay in pauses in the establishment of the model railroad, and you need a lot of those at my age / physical condition.
The FXM just look better to me this way with no exposed barrel in the back
The K&L subframe or what ever you want to call it, i will probably also get that, need to forward attachment point of bipod if i go for one of those that is.
Will probably just bag it to start off, being on a Danish pension you cant race towards your goals.
Probably also going for a vertical grip.