I don't mean to hijack this thread, but I am currently in the market for a FL tube for my new M4 and read about the CarrierComp tube and Spring in this thread, and it looks nice, Duggan!
I have also read about the SOCOM guy tube, and was looking for input as to which to go with, SOCOM Guy ro Carrier Comp. Please feel free to use my New Post "Looking for SOCOM guy Mag Tube" in the Benelli Forum (sorry, I have under 5 posts and cant provide a direct link...).
Thanks so much!