Rear shotgun sights

What type of shotgun, what type of sights (ghost ring?). What do you have in front?

Too many details left out to answer your question.

Hmm. Not personally aware of any setup made for NEF's. I was assuming you were asking for a pump or semiauto of some description.

What is it you want the sights to do for you that the fiber optic bead is not?

Is this a turkey gun or being used for something else?

There are some aftermarket clamp on sights available for shotguns with vent rib barrels but for plain barrels I can't think of anything. Good luck in your search, but I'd be surprised if you find anything that doesn't require significant gunsmithing.

If you click here:

http://www.gunaccessories.com/ShotgunStocks/index.asp

and scroll down a bit you'll see a clamp on heatshield with "ghost ring" sights. It'll meet the letter of the rule for you, but don't tell anyone I recommended them .

ATI stuff is usually pretty much crap.

Maybe you could hack a tang sight onto it, but I don't think it'd be worth the money and trouble.

You might be able to use Super Glue on the receiver or something.

Can you borrow another gun?

EDIT: ranting seems to have nailed it.