[izaakb]

Hey..

There are separate rules for rifles, shotguns, and handguns.

Provided you have a pump shotgun with a magazine of 5 rounds or less, not including the chamber, you can use a folding stock.

For shotguns, the rules are a little different. It is "either a detachable magazine OR capacity greater than 5 rds"

Most Mossberg 500s are 5 or 8 rd. By installing a folding stock with a pistol grip, you add two 'bad' features. Since the 8 rd version already has one (8 rd mag) that's too many on that one.

Using a folding stock (i.e. ATI or Choate) on a 5 rd version is fine. I have one myself. no problem.

regards