I posted this on the AR-180B sticky, but I'll add it here too:
"I'm at the 2010 Shot Show in Vegas and in the Really Good News department, I stopped by the Armalite booth and spoke with their guys. The official word from their production manager is that the AR180B is not dead and they are currently doing a redesign of the rifle. They are caught up with AR-15 orders from the Obama-effect and now have some time to devote to other projects, therefore the AR180B is back on the drawing board, literally. Speculation from persons outside the company is that any redesign will feature a non-polymer lower and a picatinny rail on the upper. I encouraged them to bring it back, saying us Canucks are eagerly waiting for it. Lets hope."
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