Got home from work and started working on getting the free float tube that had just come. Finished it up and wanted to post some pics. It's a DPMS tube.
My understanding is that the main advantage of the free float tube is to competition shooters that use a sling in prone or kneeling.Sadly you're not likely to get a ton of real improvement by just Free Floating it. Still any advantage is still an advantage. I'm not exactly a fan of tubes, just don't feel right to me, but I do like the way they look.