I would agree with using the rifle as is with the optic in a QD mount, or installing a low-profile block and rail system with folding BUIS. No need to buy a whole new rifle when you already have an excellent upper that could be easily adapted.
Never argue with an idiot. They will drag you down to their level and beat you with experience.
I contacted my Senators and Representative to voice my opposition to a new "assault weapon" ban. Did you?