US Infantry of the '90s:
Each is coded and sold individually. Irregular's catalog is pretty descriptive, so you should be able to figure out what everything is. The top row, second from the right, is an M249 gunner-- I attempted to convert his weapon to make it a bit more distinctive, and failed. Note that Irregular's catalog consistantly lists "M-16/249 Grenade Launcher" when it should be, I assume, "M-16/203 Grenade Launcher."