The only reason one would NEED a folding stock would be if some kind of mission requirement was that the gun fit into a very specific space. I am 100% sure that if this theoretical mission ever occurred, a robust, reliable, and fully tested solution would be what was asked for... not whatever monstrosity that thing is... Or RRA for that matter.
Quis custodiet ipsos custodes
The will to win is worthless if you do not have the will to prepare. -Thane Yost
Whining in a forum that people have seen your thread, but not replied, reeks of an odd brand of desperation. - Me
Titling your thread "To XYZ or Not to XYZ" will cause me to completely ignore your thread.