If you have any experience with the K-VAR bullpup kit, please see my note at: ak.ar15.com/forums/topic.html?id=50983
Please respond over there.
I'm pretty sure these kits were produced several years ago and no one bought them for whatever reason. Kvar probably bought them cheap from the original selling company.
Something about the 6" high front sight bothers me as does the basic fact that like any bullpup this is a right-handed-only firearm. If the bolt carrier handle doesn't maim a left handed shooter the cartridge case ejection is sure to cause some damage.
Bullpups may be OK for police work or plinking play though, but I can't consider them serious weapons if the targets are shooting back.