If I had a legit 1.5” gun I would be scared as hell to let anyone change the fit LOL. Awhile back I bought a 1911 costing twice as much as my Baer. In the end I spent more money upgrading it to have a Kart barrel too. It now shoots equal to my Baer. There is not another 1911 on the market (or even close) that offers the same value for price and performance in my opinion.
Congrats on your pistol!
