Is that from the script alone or could that be the cumulative total blast damge and script.
It seems to be just from the script.
So far, I've only tried this with the Tunnel Snake Outfit [health 100, AR=6 (with my Tweaks)]
Without the new changes to the script, the AR is still 6 after being blasted by a frag grenade or frag mine. And the health seems to be only knocked down about 5% at most.
Even when I removed the line that reduces the armor's health (as shown below), the armor's health is still knocked down to like 5% (and the AR is knocked down to 1).
set ArmorHealth to player.GetEquippedCurrentHealth 2
Player.SetEquippedCurrentHealth 2 ArmorHealth