I received a range holster and double mag carrier today from Dustin... I could NOT be happier! Excellent craftsmanship.

Good stuff.
What is your opinion on the mag carrier for concealed carry?

I'm laid up from back surgery and having to wear a back brace, so I can't answer that question. I got these from Dustin in hopes of taking a training class in October, not sure how well they will fill the conceal role.

I have one of his Hybrid IWB holsters for my Glock 19 and really like it.

That range holster looks awesome! I was looking into something, not for concealment, but range days.

I'm thinking about picking one up for a Glock 35 MOS. It looks like it will fit just fine with the RMR. I'll have to ask Dustin about suppressor height sights though. Haven't decided if I wanted to do that yet.

I specifically got the "Range" holster because I wanted to potentially use an RMR, a threaded barrel and suppressor sights. This holster fits the bill, at least for the VP9