It does correspond to the Mossberg 320 series. Havlin Sales has both kinds of triggerguards, as does e-gunparts, but a little cheaper. Checked the sources that I have at hand and no one has a stock. You might consider having yours fixed, it's amazing what can be done by a good 'smith. I also have a s26c model that I am considering parting out, gonna check around, it just might match up stockwise, if so I'll contact you by pm. Goatwhiskers