I recently acquired a PPQ M2 5" barrel in .40 caliber. I know virtually nothing about Walthers, but my first experience at the range was a positive one. A general question: Any advice, etc. from those with more experience? And, a specific question: Where to find and purchase a decent quality holster for this firearm? They seem to be pretty hard to find. Not as interested in concealed carry for this particular firearm. Thanks in advance.