FirstSpear recently introduced a Retro-Fit Cummerbund Kit that features their Tubes and 6/12 technology (Tubes and 6/12 explained). Soldier Systems has been all over the coverage of the new kit.
The FirstSpear Retro-Fit Cummerbund Kit converts your old Velcro secured cummerbund to accept the Tubes closure system. I am not necessarily as Velcro-phobic as some people but plate carriers tend to use it extensively enough that it can become an issue. Velcro wears out, makes noise, and, perhaps worst of all, loses function if it gets extremely dirty (clogged with snow, mud, or other debris). FirstSpear Tubes shouldn’t really suffer any of these issues. All reports say that they are quiet, durable, and very resistant to the elements. This kit should also make a typical Velcro secured plate carrier much faster and easier to don and doff.
FirstSpear is offering a special deal right now that lets you get into a Retro-Fit Cummerbund Kit at a very reduced price. You just have to trade in your current cummerbund. You can find more details on the FirstSpear website.