It’s not hard to check - go find a FiveSeveN, unload it, pull the slide back about an eighth to a quarter inch and pull the trigger. There’s a pretty good chance you’re going to hear what one person once described to me as “a deafening click”. Three out of the five that I’ve gotten my hands on did.
I’ve fired one. A friend that is a detective has one and I’ve fired it at the range. I’m going to tell him about this tomorrow. The only thing I liked was that it was fairly accurate and the recoil is extremely low.