That's a good thing in my opinion. I've had to install the taller front sights on all my P99's as they were all hitting high. 9mm and 40 S&W.I just got a set of night sights from Earl's. My initial impression is that it lowers my grouping slightly, which is fine with me because I was shooting a little high before. The one front night sight provided by Earl's is a little taller than the factory sight that was on my P99 AS. At least that was my impression by eyeballing them.