What're u guys going on about? Didn't I see an 18-1/2" barrel on the carseat next to the gun? That's your Open Cylinder TACTICOOL barrel. Done. Mod choke is most versatile for everything else. And with a rib -- pretty nice too. Other than having a Poly-Choke (IMO) or screw-in chokes, you have the most versatile set up and maybe the best value and most reliable actions available. Good purchase (tho I would recommend changing the safety switch to a metal one as soon as you reasonably get the chance).
DO INDEED go to hardware store and find a dowel that will fall into the barrel-nut screw hole -- ask someone here to tell you how long Mossberg makes 'em. Cut a piece the same length. That will let you get up to two 3" rounds in the tube when duck hunting. Take it out with a sharp pin by centering the dowel so it falls out thru the hole again and you can get up to five 3" American Made shells in the tube. Like I said. TACTICOOL!
Note: duck are often longer range shots and may need Full Choke depending on your hunt. Compensate with slightly bigger pellet size. I presume your barrel is modern enough for steel shot without bulging given the rib...
Last edited by HockaLouis; 07-31-2012 at 03:27 AM.