Is the 18.5 rifled? Do you want to keep it? If not I might have one I can trade you. I also have the standard three chokes and a jelly head turkey choke to go with it. It's a vented rib barrel, factory ported, with the two bead sight. I painted it with generic camo paint but it's in good condition. I painted it because I used it for years for turkey hunting and as we know it always rains during turkey season and Mossbergs tend to rust before you even get them home. Lol. If your interested I'll clean the paint off with mineral oil and let you take a look at it. Worst case it'll need reblued depending on what it takes to get the paint off. I've retired the gun to a trunk gun and put a collapsible stock, pistol grip pump and shell holder on it. I was going to cut that barrel to 18.5. I'm right over from you in north springfield.