Have a 3in 20ga 870 and would like to put a ghost ring on it for slugs. The only reasonably priced one i found was a full heat shield and cost 40$ plus shipping. Any one know where i can get some that are a little cheaper?

I have the same gun and was considering a rear ghost ring, too. The front bead is fine for shot...not so great for slugs. You could get a rail adapter and put a red-dot holosight on it. That's going to run more than $40 total, though.

Post here if you come up with anything.

The only other sights i found on several different websites were all trtium and 100$+ and im not gonna pay that much for irons. I think i will wait awhile im goin to a gunshow in a couple weeks maybe i will get lucky.