Does anyone know where I can find a forearm and stock kit for my Charles Daly Field Tactical shotgun, I haven't seen anything for them anywhere.

Have you tried Brownells and Midway?

Is the CD based off something like the Mossberg or Remington?
I have never had one in hand.

I was told that my 20 gauge(charles daly) takes remington chokes. My pump looks very similar to a remington 870.