To me this is the deciding factor. There really isn't much difference between models, barrel contour, sights, and grips are the ones that come to mind. The lite is just that, a lighter version, the barrel is aluminum with a steel sleeve.One thing is for sure, he really likes the URX grips and so do I (he's a righty, I'm a lefty).
I have a camper that came with the fiber optic front sight. My daughter likes it a lot. The safety is hard for her to operate, but since it is a range gun we just don't use it.