pump is not semi auto. semi auto is any mechanism that uses the pressure from the expanding gas to eject the spent casing and load the new one. so that dosnt include a pump, bolt action, or lever action, which all require mechanical input to load a new shell.
folding is 100% legal on any pump no matter what else i has done to it. but if its semi and manufactured after September 14, 1994, it can only have one of the below features
- Telescoping or folding stock
-Pistol grip
- a fixed magazine capacity in excess of five rounds
-an ability to accept a detachable magazine
more info on shotguns pertaining to the AWB
http://www.nyfirearms.com/forums/laws-politics/4509-new-york-state-assault-weapon-ban-faq-part-3-shotguns.htmlanother option is a telescoping stock, though a true folding stock is probably better for CQB.
FTR, any shotgun with a pistol grip is illegal within the city of Rochester per city law. Buffalo has laws too, but no one else around does.