The most important thing out of an open gun company is warranty and customer service. It’s not an if it goes down it’s a when. And when it does happen you want a company that will take care of you.
Witt that said Johnny and Julian at Limcat custom are hard to beat when it comes to warranty and customer service.
a buddy of mine cracked a slide on a very old limcat open gun that he bought second hand. They put a new comp and slide on it in a weeks time and got it back to him for a very reasonable price. This is what you want in an open gun company.
I’ve also heard great things about venom custom when it comes to standing behind their work and timely repairs.