Listen Mark, the tube you sent me was defective plain and simple. you just can't admit to making a mistake. Instead, you got an attitude. If you had been willing to send me an exchange tube I'm sure all this could have been easily cleared up. Rather, you wanted to play games by checking if I knew which end to screw in by asking for a picture and weeks of delays. That's insulting. After crummy customer service, a tube that didn't fit and no exchange, I have a right to a full refund - still haven't got it. You advertised a tube that would fit a Stoeger M3000 and it did not fit mine. That IS a warranty issue. I don't care how many you say it fit, or what your thread gauge indicates I'm only concerned with one receiver - mine.
+1 for Taccom. His aluminum extension fit my Benelli perfectly and it's super strong. Tim is a great guy, always ready to help and really friendly.