David Gaddes
.22LR
Just wanted to introduce myself. Recently bought 590 (model 50778) for HD and range shooting. Seems like a fine machine. Have added a few (for me) essentials- sling, WML, side saddle and replacement of the pitiful plastic safety switch. Don't plan to add anything else. A wealth of information here and so glad to have found it. Former Marine but never shot Mossbergs, we only had clapped-out Remingtons, but they worked.Looking forward to learning more.