From what I have seen and heard the only changes are the LPR chamber being bigger only slightly and the grips changed from two pieces to one for preventing it from sliding or twisting. Oh and also the barrel is different looks pretty cool, they say its "better" but who knows really. Would say that the LV1 would be the way to go. As of right now this looks like a minor change almost like the DM14 to the DM15.
But then again I could be wrong!
still excited to see it, Mid may is when they say it drop.