The barrel mount is removable and will probably end up magnetized. Not sure about the barrel itself yet. Happy with the detail level, but I need to finish the tracks before I can work on the rear stabilization arms.
The width of the barrel with the side pieces is exactly 20mm so that's kinda cool. Going to make a box to fit behind the barrel to extend it out even longer.
Well that's it. A quick update. Several hours of work..most of it staring at tank treads trying to figure something out..