QUOTE (Ubar @ May 26 2006, 02:06 PM)
guarder (who are somehow affiliated with star) brought out the same their for their AK series, and it basically mashed your internals after a few hundred rounds
it never smashed anything if installed correctly and used with the correct parts(i.e. a quality set of internals)
You are right though becuase it did commonly screw internals if the cut in the reciever was at a wrong angle or you held the bolt foreward and fired(basically pushing the piston the opposite way its attemting to go).
It does seem though that this kit probably wont have those problems seeing that the box is pre-cut so you cant really screw up much besides installing parts wrong.