I'm new to this forum and hope you can help me out. I am a vet and have qualified with the M9 and I'm looking to buy one for personal use. I know I can't buy a military grade M9 but know that they make a similar commercial version. My question is which model is best because I notice that there are several different models out there now. I find word of mouth and first hand experience is worth more than all the research I can ever do. Thanks.