Benelli mag tube with Benelli spring made for 7 round tube. Everything is perfectly fine. I had the trigger assembly out the day before the range with the pistol grip off as well. I disassembled and checked everything just now, and the trigger assembly went in a lot easier. I'm heading out to the range tomorrow evening to try it again.
When spinning the grip back onto the receiver, it has to be tight...? I mean...it shouldn't feel like it needs to make one more rotation to get it tighter? Over thinking here....