Thread: my predictions
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Old February 5, 2013, 06:19 PM   #9
Senior Member
Join Date: November 20, 2008
Posts: 10,529
I am not aware of any plastics that are as hard, tough, and strong as good quality tool steel. You don't see anyone making bolts, firing pins, and barrels out of the stuff. That's really what an AR is - a steel barrel, steel bolt and steel bolt carrier assembly. The rest is just for decoration.
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