[Niantician]

I've been carrying an M16/AR15 professionally for 13 yrs now. I'm left handed. Aside from the fact that the ejection port will sometimes spit some gunblast in your face with a dirty or over oiled weapon, there really aren't any drawbacks. You will get used the the safety and other fire controls being where they are. I've never looked because I've never felt the need, but a reverse charging handle would be the only component I would like to swap out.