What do yall think about this rifle? Just saw it in a magazine and thought it was a good concept. It says it can accept an adapter so it will fit a standard upper. I like this because if/when I get an ar, I want versatility. I would plan on getting .308,.223/5.56, .22, and .243 uppers for it. Also, as for ars in general, what accuracy might I expect from your average no frills upper in these chamberings? 1MOA is good for me, 2MOA is okay, and 3MOA with the best load is getting sent back to the factory in my book, but is this too much to expect from an assult rifle?