I just got a new magazine tube clamp for my mossberg 930 spx. I orderd through a company that in bold print says if you are placing this on a mossberg 930 spx order this part #BCL-xx-32-MB. Well to my luck I tryed to install and the screws will not even pass between the barrel and the magazine tube. So now I am stuck with a brand new part that doesn't fit the gun it's supose to. Any ideas.