sorry at this time Retay only offers the 12 gauge with 26 or 28 inch barrels Please remember that a 28 inch barrel semi auto has a longer sighting plane than a 32 inch O/U see the different models here retayusa.com/product-category/shotguns/

If you're asking about this specific model, then yes, Only 28" at the moment. Otherwise. Here's a few 32" models available here at Buds from Other makers.
budsgunshop.com/search.php/q/shotgun+32%22

Hi Michael and welcome. 28-inch currently at Buds. Cheers and stay safe!