I have a 329 PD. I changed the front and rear sights on the gun and put the same ones that come on the Night Guard Series on it. I had the hammer shortened and thinned, and I Put a set of VZ round butt grips on it. I had a kydex inside the waistband holster made for it, and it conceals very well. I know it was a little bit of work, but I get a lot better ballistics from the four inch barrel. I don't think this gun needs adjustable sights. It is a carry gun, it is not for punching paper all day at the range.