Does the vest fit over the top or open in front?????
If it is FSBE, it will be a 2 piece vest, with a cut away device on the lower portion of the front panel. (The reason that we don't advocate a seperate LBV is that it will negate the quick disconnect feature.)
I just checked with Natick- there are no plans for FSBE to go to other then Force as an interim, though an upgrade is in the works for USSOCOM.
You may have the standard infantry interceptor vest if it is a front opener.