HI, the newer 11 87 supermags come with an extra gas seal that you drop in to shoot light 2 3/4" loads. I have both the supermag and a premier light contour 11 87 and have found them both to be very reliable, even with Gun Club and AA taget loads.My supermag has a 26" barrel and is a real handy field gun,but if the shorter barrel bugs you an extended choke tube is an option.Hope this helps. Good Hunting.