I would say yes (stainless slide and all) and I even have a tap set I’ve used for some aftermarket slide stuff but it would be very against Department policy for me to do it. Our Armorer could, but he’s out for a couple weeks and won’t be back before this guy’s class.
Now that you mention it though… I think I’ll recommend (since it’s a second gun for him) that he have our Armorer deal with the threads when he’s back after the class and we’ll re-mount it with new screws.