So I am in the process of getting a Sig P220 Legion and am having a Trijicon RMR put on it. I will need a holster for it and this is my first go around with an optic on a handgun. I emailed Milt Sparks to see if they can do something as that is my 1st choice but other then that. Not sure where to look? Would the optic be in a place that will get in the way with a run of the mill holster for the P220 10mm?