A four-armed body armed with four blasters for your four-armed army.

Ender 3

I'm not sure of the exact scale I used when I printed the body or head.
I printed ten Kasatha heads at the same time at slightly different scales.
I can tell you the body is 35mm tall and the head is around 13 mm from the chin to top of head.

Remixed the Gordon Freeman model to give it four arms.
Printed the head separately and glued it on.
I did nothing to alter the head and include it for convenience.