All P22s have an adjustable rear sight....windage only. The pistols come with three different height front blades. #2, #3 and #4 and usually a flat one for filling the hole if you get the 5" barrel and stabilizer. Jon, I answered your PM.....but darned if I remember if I sent it off.. I'll check.
Oldbub, the rear sight sits over a threaded loop and there are no aftermarket rear sights. Try the #2 front blade that comes with the gun to raise your point of impact. 1917