Do you know anyone who can round the edges of the slide release?  I think it'll have to have a small area inside filled with weld, first.

I love Glocks, but they're too thick for me to carry concealed (I'm pretty lean - 5'10" and 160#).  I've discovered that I think of excuses not to wear anything bigger than my S&W 3913, especially when the weather's hot, and my theory is that small and light is better than nothing.  The Kahr beats even most .380's.  I think it'd even be comfortable in an ankle holster.  And they have a reputation for reliability.  

Mine eats anything I feed it, including Cor-bon 155-grain +P.  It's more accurate at 25 yards than my Glock 19's or my Glock 17, and it's a hell of a lot easier to carry because it's so thin.  The G19 can carry more rounds if you wanna shell out for pre-ban hi-caps, but the Kahr is a great concealed carry gun.