That price range is accurate.
Cheap one is about $500, for better $900, high end is up up up $$$
It really depends on what kind of AR 15 you are looking for. They range from 600 to 1600 depending on the build. You looking for a sporting rifle for 3 gun? Or just a weekend shoot every now and then? Home defense? It depends...
The M&P from Smith and Wesson is selling in the mid to high $600 range
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