I am wanting to make a custom Polarstar build, and I'm still trying to find a good rail to put it on. I think I found a good one: HERE. Everything looks alright about it. One of my specifications is that it has to be able to fit the Angle Custom Hive Suppressor inside of it (diameter 37mm). Though I have seen people say that you should NEVER get anything APS because the quality is crap. But I don't know. ¯ \ _ (ツ) _ / ¯ Thanks!