The Radial Coreflex Holster is built specifically for appendix carry (AIWB). We've carefully selected and tested each component to provide the maximum versatility, comfort, and concealment for the end user.
Purchased this for my Shadow Syatems CR920 with the Holosun 507k. Great fit for the gun and extra magazine. Very well made and a great price for what you get. Impressed with the quality and care of the holster.
I purchased the Glock 43X MOS version for my SS CR920. I must say it is a great holster and using it for the past few days. I have and use Tier 1 and T-Rex for other firearms and found RadialUSA. It is a lot like a Tier 1 and is to me as comfortable as my Tier 1 but at a lot less money and much quicker turn around time, I had it in 1 week vs others lead time of 4-6 weeks.
The only thing I do wish about this holster was the option to get mid-height sweat guard but I can manage and if need be reduce the height myself.