... I dont know what the SAW stands for...
In real terms, Squad Automatic Weapon. (Hasbro calls it Semi-Automatic Weapon, possibly for legal reasons)
It’s basically a classification of weapon used for suppression and high rate of fire. It is the modern equivalent to the old “Machine Gunner” soldier function.
Starting in the late 80s, there was a move away from the large and heavy M60 Machine Gun platform to something lighter and more portable, resulting in the M249 (referred to as the “SAW” machine gun). Something that could be used by a single soldier for suppression and support roles.
I can’t abide someone NOT getting a kick out of a SAW Viper with a saw. I’m CERTAIN that they were completely aware of the irony and humor present.