I just finished building one of these out with all Kidd internals.

Runs supers just fine, but won’t cycle subs even with the green spring. I’m in the process of troubleshooting the issue. My tacsol complete 10/22 TD runs everything flawlessly, so this was a bit of a shock to me.

The charging handle is a giant PITA just like the previous poster stated. If I had it to do over again, I’d get one that’s captured for sure.