This is a 20 ga 870 model (pump) with 7 round mag capacity and a Knoxx recoil-absorbing, adjustable length, pistol grip-type stock. I'd like to buy one while I'm out of state on vacation. I have a MA unrestricted Class A LTC. I'm thinking that this gun as configured is legal in MA (because it's a pump it's not an "assault weapon", right?), but would like to see what you guys think about this. Thanks.