Looking for a pocket pistol or revolver. Needs to be 9mm if pistol and probably 38spl in a revolver. I have a cz p-01 and love it but really wanting something smaller and lighter to throw in my pocket and go. Right now im thinking m&p shield or xds9 for a pistol...not too well versed in small revolvers. I had a s&w airweight that im wishing i would have kept. All im worried about is easy pocket concealment and reliability.