If you don’t need the money, I’d keep them. As long as they’re stored properly, it’s not like they’ll rot or go bad, haha.
I sold a lot to get my AI, but only because I had to in order to keep it. I didn’t WANT to sell anything, but I had to be realistic with where I’m at right now, and just couldn’t justify having as much money wrapped up in rifles right now. I’ll be replacing several of them as time goes by, but when I really thought about it, the AI checked the most boxes, would get used the most, and was the biggest “grail” rifle of the bunch (though it was close with a few). Life goes on, and I’m happy with my decision.