Hey guys I've got a friend joining the Marines he'll be leaving for Boot Camp soon....now since the M9 is going to be his sidearm I thought I should get him a new magazine since that is what I hear is the first thing that fails with the m9. I was looking and saw that you can get flush fit 19 or 20 Round magazines....but I'm not sure if the Marines will allow them or not. And if they do I want the best damn mag you can buy for an M9 so enlighten me. What are your thoughts? I was going to give him that and give him one of my PMAGs as a present so he can use that if he wants....I'd give them to his dad and have his dad ship them off to my pal when he's shipped out.