Oh wow! That round counter looks amazing!!!
As for the styrene, it's definitely the 2mm/.08. Don't try to cut all the way through. Score once, bend, bend, snap. For the thinner pieces, just use a pair of pliers to grip the piece and gently bend it.
I got totally lazy with the filler on mine, so I missed out on a lot of sanding (just sanding the nerf logos down was enough work for me
. I tried bondo, but it didn't stick, so I just skipped the filler entirely. I did sand down all the edges of the styrene though, to give it a rounded look. Makes it look a lot cleaner and more realistic imo.
If you guys have walkthroughs for the round counter and blaster core, I'd love to see them added here
Oh, and my trigger extender is basically identical to the one posted earlier, the only note I would make is that there isn't much room for the trigger itself inside the trigger guard. I tried using the trigger from the longshot front gun as well, but found it easier to just make the entire extender, trigger included, out of one piece of styrene, then sandwich a few more pieces on the sides for strength.
Brilliant work everyone!