can anyone comment on the long term robustness of polymer frames? I've never owned one and am completely clueless. All i can think about is finding old plastic stuff at my grandparents house that basically deteriorated or became brittle and snapped.
This is the last thing to worry about - This topic has come up for years. Unless you leave it out in the sun, theoretically - you will be fine. I have seen magazine articles about this over the years too. Speculation is that the gun would last at least 100 years.