Kieth, I have owned many Glocks and never had an AD from the following ones G-37, G-22 (duty weapon) G-27 (back up), G-17 and G-19. Many who do not, or never have owned Glocks have this fear of an AD because of the Safe Action trigger system that Glock has on all their models.
All of the above at one time or another were carried IWB without a holster. I had a clip draw for the G-27 and I always carried all of them with a round in the chamber. The key to not having a AD with a Glock is making sure that you keep your finger off the trigger IE the safety in the center of said trigger must be depressed before the whole trigger can be depressed to engage firing said Glock.
I highly recomend Glock, because of the Tennifer finnish that prevents rust from body and other wetness. If I needed a combat type of duty or conceal carry firearm I would want a Glock again for the reasons above. From the first Glock 17 introduction to the US Market I carried a Glock up until 2005 when I left law enforcement work.
I switched to carrying a Taurus 2" .44 mag/spl because I like it for town and trail carry, but I worry about rust because its blue, and does not have an anti rust finish.
At one time I thought about getting a Kel-Tec either in the .40 or the 9mm but, the trigger pull out of the box is 9 pounds [xx(] no thank you, and these do rust as well.
I can not comment on an HK simply because I have always thought they were over priced, and always stuck with a handgun that did not have all the bells and whistles. Again, if I were working deep cover I would without a doubt purchase another Glock.
Just an opinion given freely at no charge
