Winchester SX4 brand new in box

BNIB, never fired 31/2 inch chamber, 26" barrel, will also include a brand new Patternmaster duck choke. Save over $300 off shelf price, buying it here. This is the same auto gas system and trigger as a Browning stalker, but the Winchester SX4 has better ergonomics with the thinner neck and features like the oversized controls and front fibre optic bead. If sold locally, I would throw in a box 3.5 inch shells to help break it in.
I would be interested in trades for a 30" o/u with removable chokes and ejectors.