ceo of kniraz

some general notes to start: a lot of the motion required by the 3rd arm only utilizes the muscles of the back, along with the deltoid (and the lats + 'little lats' but i consider those to be part of the back muscle group). i had jotted down the known angles and positions wed been shown in trimax but those didnt make the crop so...🤷‍♂️

my personal takes:

it would work best and be the most straightforward approach to blend the organic muscle structure with the...well, "organic" additions. to do so, they would need a little extra wiggle room to properly connect things at the proper depth. leaving it along the surface as just an addition would probably give away a 'weak spot'—knowing how things have to be connected in order for something like that to Work means knowing where to hit thatll hurt like a BITCH and potentially stun / incapacitate razlo in the midst of things.

(of course, when it gets blasted off by ww, its pretty obvious that it hurts like a bitch anyways. but cmon a blasted magazine jammed in your back is Gonna Hurt)

now, i did say "organic" above—lets dig a little deeper into my hc sandbox, shall we?? there are a couple ways things could go: solely mechanical (lost tech could do Many Things...), the cadaver approach (i mean...), or the "failed experiment" approach (depends on how much you wanna blend canons between stamp and max on that one).

solely mechanical: the eye probably has a lot of access to tech that others may not have thanks to conrad (ew). given the weapons they produce, it wouldnt be far fetched!! i prefer a blend of mechanical and organic myself, but the opportunities are endless.

cadaver: they would likely have...quite a few bodies in different states, given the inherent level of violence it takes to become an assassin. finding someone who has the same bloodtype, similar levels of The Juice Blend (serum), things that would make the transplant Compatible—either that would be Real Easy or Real Hard. again, depends on the stance taken here. going off just bloodtype? easy. serum? harder. much harder, given it Seems there arent many who have the same autoregen that lr has. i could be wrong but wws reaction to it makes me Think.

experimental: mixing some of stamps ideas as far as "building" or "creating" new plants (i think ep 10 or 11??) in tanks makes for an interesting theory, i must say. fusing organic tissues from "failed" plants would be good for a more "natural" approach, potentially even allowing for a higher likelihood of their body accepting the transplant. this would also lead to...interesting conversations in the postcanon klr department. potentially knives blows a fucking gasket part two.

anyways, back to the topic at hand: the diagram

including thin plating under the layer of muscle, however you want to approach it, leads to an easier slide over more "stiff" anatomical areas—the spine, scapular zones, etc.

the muscle could overlap the existing "base" musculature, allowing lr to keep the regular function to their Actual Arms, but it would lead to a more thin, stretched connection to the 3rd arm. yet another reason to kind of "nestle" the port and humeral extension between their shoulders, while still allowing for the surface muscle to expand and contract to properly move it. the humeral extension leans more into cadaver territory, given that it would be easiest to apply a prothesis approach based on an "available information" bias.

the blood / vein and nervous connections allow for more tactile sense in the arm—how tight to grip a weapon without misfiring would require that!! as well as having a general idea of Where it is and What Position its resting in. from what i can tell, having the palm rotated outward and keeping it curled seems to be the natural resting position, but i could be wrong. it could also rest palm in and just...down. could also depend on the situation, whether hes holding a punisher, etc.

at the "core" or base of the arm, there would likely be...somewhat of a mirrored delt situation necessary in order to pull the arm up, rotate it, etc. along with a mirrored scapula and "spine" of the scapula!! just to have a good, solid base. the addition of an extra clavicle down and back would also help form a good "starting point" for the muscle to build off of, along with providing extra connected muscle that may be necessary for motion.