Did NEF change up their stocks on the 2005’s? I bought mine new in the box from an arms show. The first letters of the serial number are “NK” and the butt stock has a white spacer and a scalloped fore arm. The new catalog shows a different stock and no white spacer. One more question, what is the difference in the heavy barrel that wal mart sells and the bull barrel that is in the catalog? (I know………I’m a Handi Rookie, please be patient)