There is absolutely nothing wrong with the polymer lower as long as you aren't stupid and abuse your rifle. As long as you don't release the upper and let it swing down and slam into the lower and as long as you don't use your rifle as a pry bar it's not going to break.
In case you hadn't noticed there are many modern high end rifles using polymer in their construction. It's an advantage not a downfall of the design.
My issues isn't that it is made from polymer, its just that the hinge is polymer. I might be a little too worried over nothing but my one concern is that one day ill be shooting out in winter time and then it just snaps. IMO though I would love to just have a stamped metal lower mainly for looks and just for security that it will be more tolerable. Also the new polymer guns I think they are alot more stronger mainly because they don't have all the stress on one tiny hinge but I hear what your talking about.


















































