IIRC there were metal limiter caps on the ones I just showed above, but they disappeared in a couple of minutes. I thought I kept them but can't find them now. Anyway, that is what was left after their removal.
Honestly, I've never tried to adjust a saw with limiter caps - knowing how a chainsaw carb functions, I know they cannot hold a fixed mixture even with small changes in air flow, let alone changes in atmospheric conditions, temperature, fuel, etc. So limiter caps are just a cheap cheese by the manufacturers and not a real solution to anything, as you must be able to adjust the mixture for the tool to operate. Limiters didn't even work on cars or mowers, or other OPE with real carbs, and they can't work on these.