Hi everyone I am new to the forum and I have some Questions. To start off I am a glock guy thru and thru But.. I love m&p's also I've owned several over the years and I'm going back to them for duty usage. now this isn't a department issued firearm this is my personal firearm and I am looking to upgrade and enhance it to make it what i would think would be, the best fighting pistol for me. some of the changes i would like to make are... #1 barrel. I'm looking at a semi drop in threaded barrel and narrowed it down to 3 choices (1. bar-sto 2.wilson combat and 3. stormlake) I would like some feed back on accuracy and if they increase reliability and such. Ive read some about how the factory barrels aren't great as of late and are having some major issues. #2 on my list is triggers what is my best option for a good reliable trigger system i.e. the apex duty setup with their one piece trigger, I would like to hear some pros and cons of that system and if anyone has a significant amount of time and rounds down range with that setup and if there's any reliability issues with it. I do my own stippling and grip enhancements so that isn't a topic i want to worry about. and #3 what do you guys recommend I do to run my duty ammo out of this blaster. I currently use Winchester 124gr +p+ rangers out of my duty guns. as that is the ammo we are issued i can run 147gr rangers if i can get my hands on it but its hard to get ahold of in my area. thank you for all your opinions and advice. sincerely Gonzo