Dr. K comes to mind although idk how you'd manage the rest.
Not a lot of surface area for anything to fancy, if it were me I'd probably 3d print a cap for the right side so the filter doesn't get in the way of a good cheek weld, sand the 3m logo off the front, then layer some quality flexible vivid yellow or green under cheapo flat black so as you take hits rub etc you get a nice natural relic / battle damage look. Maybe a Cheshire Cat grin on the front in white paint pen if there's room, or some kill marks on the side.
Not a lot of surface area for anything to fancy, if it were me I'd probably 3d print a cap for the right side so the filter doesn't get in the way of a good cheek weld, sand the 3m logo off the front, then layer some quality flexible vivid yellow or green under cheapo flat black so as you take hits rub etc you get a nice natural relic / battle damage look. Maybe a Cheshire Cat grin on the front in white paint pen if there's room, or some kill marks on the side.