Some pictures of the ejectors may help as they may be similar enough to another shotgun for someone here to figure it out. I know of 3 ways ejectors are removed, pushing the ejectors forward and twisting them out like many Berrettas, partially cpmpressing the ejector and removing a keeper screw, and partially compressing the ejector and picking out a keeper on the forward end of the ejector like some other Berettas. There are most likely others but there must be a limited number of ways. Lastly you could call Stoeger Canada and with a little luck find someone who knows.