I think trying to conceal a standard FNX w/tac light is almost impossible without a jacket, let alone a Tactical with an RMR.
If it's easily noticed, it's not really concealed, now is it? I'm all for open carry, but massive bulge on your hip with a T-shirt over it doesn't exactly fit the OP's question.I do it all the time. mine is IWB. if its noticed i dont care, i carry what i like and i like this and a USP