I did the same thing, added a Holosun to my P365x. I just had a new one made for it. Call Bobby at Bayou Custom Holsters, near Holden. I have his info if you need it
Thanx for adding me to the site. This is more for personal reasons than business. I own a small Cerakote shop in Denham Springs. FFL07, always interested in buying/selling/trading