3D2D on weapon

Hello FP,
I wanted to know if its possible to draw 3D2D on the weapon(itself, not the players hud), like get the weapons pos in the players hand, and then draw something on the side of it with 3D2D, like an screen or so? I guess it has to do with WEAPON:DrawHUD() but I dont know how to get the weapons pos, its angle and its wide/tall.