The serial number is intact on front strap.
I find the 40 BHP a very nice pistol. The extra thickness to the slide as well as the spring rates this pistol has equals a very flat shooting 40 S&W. It does not exhibit the recoil of say a G22.
I prefer the 40 round for work as my environment for a possible encounter could be in and around vehicles. The 40 is slightly better than the 9mm for such work. I have a two nice 9mm BHP. I have no concerns carrying them off duty.
JW