Jaw

Jaw was defined in 3e's Basic Set on pg 248 under Vital Organs as optional rules.
It's also found in both incarnations of GURPS Martial Arts:
*3e pg 49
*4e pg 137
Rules for how misses worked were changed from 3e to 4e:
*a miss by 1 went from hitting the face to hitting the torso (probably "chest" in Low-Tech breakdown)
4e specified it needs to be targeted from the front (3e did not) and only gives a (very slight) benefit from crushing attacks: if it causes a knockdown roll (since it's a face hit, this is enough damage to cause shock: only 1 penetrating damage unless it's HP>19) that roll is at -1
3e's benefit was more extreme, giving the worse (for target, best for attackeR) of two options:
*victim must roll against HT-2
*victim must roll against HT minus damage taken
This was only for "stun" though, there's no mention of knockdown.
This means it's probably a separate (and perhaps cumulative) rule from 3eB99's standard Major Wound rules, where >half HP wounds ALWAYS stunned, with the 1st HT roll simply used to figure if target falls down in addition to being stunned: the 2nd HT roll on following turn was the first time the stun could end.
==See also==
*Mouth (hit location)
Category:Hit Locations