Yes, I have been revealed as the closet brit weapons anglophile that i am. Its ironic that British subjects can't own them...
My academy class was the first to get the .40 Glock. It took an officer getting shot and killed to get them. Prior to that we were issued .38 revolvers, but one could buy one of four approved 9mm semiautos with their own money if they liked. I really like glocks in general and the .40 is fine. If I had my druthers I would be allowed to carry a 1911-type .45 but that will never happen here.
We're trying hard to get ARs approved now, but we won't see them anytime soon. The original proposal was for Department-issued guns, which i think is a mistake. We've got too many officers who can't keep an 870 clean ( and a few who couldn't hit the ground if they dropped their weapon). An 870 will go "bang" even after being neglected, an AR won't. The way to go in my opinion is to let those of us who own one or are willing to buy one be trained on them. That would simplify training greatly. They already have policies in place for SWAT and K9 AR's.
We have one Deputy Chief pushing for them, the others don't seem to like the idea. Coincidentally, she is the only one of them with any significant street time...