I have a Ruger Security 9 and I am having problems finding a level 2 holster for. I have been told that a Glock 19 or 23 holster will work but I am not sure if this is true. I would like feed back as to what to purchase and possibly where. I currently have a leather OWB holster but there are times that I would like a level 2 or even a lever 3. Thanks in advance for all your input and help.