I recently purchased an ultra slug hunter in 20 gauge and im having some issues with ejection. particuarly not ejecting fired shells. it will eject unfired shells just fine. I have read that these have issues with metal in the ejection springs. I tried blowing it out and spraying oil through there and nothing seems to help. with hunting season approaching i dont really want to send it back.

Is there any way i can take this apart and clean it. I have fairly decent gun knowledge. Also if any one has any other input as to my problem please help.

thank you