The operating rod is hitting the rear base of the forward mounted scope rail (located between the barrel and gas tube). It actually sheared a good chunk of metal from the base of the mount. Kind of strange considering that the forward mount is one of the key features of this rifle. Even stranger, it still functioned very well.
The process of buying/receiving this rifle was a long and strange process (too long of a story to relate here and now). I was finally able to pick it up on the day of the attacks. Then this happened.
The folks at FED EX were great BTW. I talked guns with the two clerks the whole time. Both of them had made recent purchases also. I ended up shipping it Standard Overnight, but what the heck, after paying what I did for the rifle, another $34 isn't a huge deal (insurance included). Springfield should reimburse me for some or all of that. Take care.