This is my 1982 straight arm 3.75" G.I. Joe Infantry solider Grunt. This figure is the basic Army soldier. I understand that Grunt was originally envisioned as just a basic "green shirt" army builder type figure but by the time the line got to the final stages he had morphed into a singular character with his primary military specialty being infantry.
Grunt is about as basic as you can get- and that's not bad! He is a straight up 1960's-70's era Army Infantry solider decked out in Olive Drab green, a standard army helmet, back pack, and M-16 assault rifle.