Guys, after actually DOING the conversion, it turns out the disconnect on the Tapco G2 single hook FCG doesn't even extend back to where the big-headed rivet would be. Like you guys said, non issue. Thanks for your advice. BTW, it's done, at least the new internals, stock and PG. Haven't decided what to do with the forearm. I'd like to put traditional AK100 stuff on, but hate the thought of adding the split, screw-held retainer. Do they hold well enough?