To complete my 5 gun arsenal my next purchase will be a scatter gun. Please note that I know little about shotguns, eager to learn and pretty confident in my learning abilities. That said I'm dead set on a rem . 870. remmys web site has a "deer combo" that I love. http://www.remington.com/products/firearms/shotguns/model-870/model-870-express-combos.aspx The gun will be intended on use for bird Hunting, deer hunting, and I'm hoping on getting magazine extension and 18" barrel for self defense surpasses. My question is have I made a wise decision? Thoughts feedback please. I still don't know what a choke.