Damn...
Adding a base plate is b.s. it looks terrible if you ask me. I bought my modern hunter to hunt with and look good (different) doing it. Being ambidextrous, semi-automatic, adjustable with inexpensive mag options were all the points that sold me initially.
Aluminium mags...too much weight. Metal on metal is also more noise. These are only some concerns i have when i hunt. My rifle sees a bench when i have time and want to play. The rest of the time its business.
Id pay to have Rick redo my lower so that it takes gen3 pmags. Absolutely. They are available on every street corner right now. I can buy hundreds if i want. Gen 4s you ask? What does that matter? We are aware now and we all have the opportunity to prepare for a rifle that accepts the gen 3. The only thing will be that Rick will have to pay closer attention and make the appropriate changes if and when the time comes.