GURPS offers various levels of detail for hit locations.
Starting with the currently implemented layout from the Basic Set, then adding new locations in the section about custom armor in Low Tech and again expanding on the list in Martial Arts.
It would be awesome if we could pick which one of these we want.
And with the new option to select your body type, adding these different lists as 'body types' might work quite well (or well enough).
Low Tech (p100) adds various locations as can be seen on the attached image.
Martial Arts (p137) adds
- Ear (-7)
- Jaw (-6)
- Joints (-5 or -7)
- limb / shoulder, elbow & knee (-5)
- extremity / wrist & ankle (-7)
- Nose (-7)
- Spine (-8)
- Veins and Arteries (-5 or -8)
- neck (-8)
- arm, leg (-5)
Allowing for items that only cover one arm or leg would be nice as well - especially since the locations for that already exist.