hello I am new to the forum and first off I would like to thank all of the posters on this forum for making my decision to buy the M&P-15-22 so much easier. I just bought mine 3 days ago and have been scouring the forums for ideas on how to set it up as well as general information on the rifle and all of the posts have been a great help.

so I bought the plain barrel (no flash suppressor) model and the serial number on mine starts out

DUR66XX

I have not shot it yet but will do so in the next day or two, I have a box of CCI mini mags that I will try.