I played scoped N-tec PR1 over the normal n-tec for 1-2 years.
It felt very different when I jumped on to try riot, I think it might jumpshoot better than the normal n-tec but not sure since I only killed 3-4 civillians with it.
If its true then its prob an oversight from some "recent" change, never seen anyone play PR1 only PR2.