Buy an American made gun. No, not for patriotic reasons, but because ATF has decided that only American made shotguns should be able to accept things like magazine extensions and some other "tactical" accessories. I have a Charles Daly (made in Turkey) that is a good cheap (well under $200.00) gun that hold 5 ea 2 3/4" shells, and that's enough for home defense which is what I bought it for, but if I wanted to go tactical with it, I couldn't put a rifled barrel or a 22" barrel on it. I can't put a magazine extension on it. I did a little surgury on it and put a picatiny rail on top and an M-3 Aimpoint red dot on it. There is a Chinese Remington 870 clone that can be had that accepts all of the 870 add ons, and I'm not too sure if they are still being imported or not, if not you should be able to find one on one of the online gun auctions. Be careful of the Mosburgs too. You can't add on a magazine extension without changing the barrel at the same time. That can get expensive.