My buddy has a 365 and the mags all have surface rust after a month of carry. His barrel and chamber looked rusty on the inside, and he scratched the lens on the red dot with his fingernail the first time he turned it on. After a 4 day class, the red dot lens was scratched beyond being usable. Have talked and inspected the guns of a lot of people who carry this regularly and it seems to be an isolated issue, but it turned me off of them.