[Renfield]

The real issue with Bullpups is ergonomic failure. If you shoot left-handed (like I do) and you have to use one of the bullpup-style guns, you end up with a hot cartridge case imbedded in your left cheek. Even with designs like the French FAMAS and Austrian AUG, that are convertible from right-hand to left-hand action, this conversion takes 5 or 10 minutes...not something one can do in the heat of battle. Guns need to be designed so that one can pick up his fallen comrade's rifle in battle, and use it right away without worrying about ergonomic or safety problems.

[The KG9 Kid]

"... Even with designs like the French FAMAS and Austrian AUG, that are convertible from right-hand to left-hand action, this conversion takes 5 or 10 minutes...not something one can do in the heat of battle..."

The FAMAS has an ejection port cover that can be switched to deflect fired cases in either direction in a few seconds. You just turn it around 180 degrees.