Just got my DMW extension for my Benelli M2 Tactical. I have some questions I thought you guys would know the answer to.
The factory tube had a metal cap in the end, and no follower.
DMW's package has no cap at the end of the tube, and a red follower.
Is it right to just assemble the tube, follower and spring, without anything capping off the hole at the end? That seems odd to me.
If that is right, the next question, is which spring should I use? Does it matter?