I have a freedom ordinance fx-9 with like a 8 inch barrel, I put a obsidian 45 suppressor on it and it shoots perfect right out of the box, didn't have to mess with the buffer or anything...it takes glock magsLooking at purchasing a 9mm PCC. I am thinking about a S&W Response since it uses M&P mags. On the other hand I am thinking of a Ruger. What are your thoughts?