Everyone here is assuming you have the rem-choke system. Do you have a screw in choke tube or is it a fixed barrel? If it is fixed, I recommend you get one that accepts choke tubes, preferably one that is parkerized. You can sometimes find a good deal on E-Bay, but I notice most of the decent deals are on 28" barrels. Also, be careful about interchangeability. I think the express and wingmaster are interchangeable, but the special purpose field barrels are not with the other models. Check with remington to be sure, they have a decent web site. If you have a screw in choke, then I'd agree with everyone, get an extra full choke. There many out there that will fit remingtons, and each gun shoots a little different. What works for me might not work that way for you, etc.