On 2/2/17 I posted a new post regarding my failure to feed problem on my brand new SCAR 17.
Thank you all for the tremendous number of replies and the many helpful suggestions as to what the problem might be.
I found the problem. It was the after market bullet button.
After making it featureless to keep it legal, I installed the factory mag release and went to the range and it fed and shot flawlessly and perfectly, with not one failure to feed. Once I fopukd the problem I then installed a new Radliock brand bullet button on it to keep it legal.
I fell in love with this rifle as its TRULY AN AWESOME GUN, extremely high quality, very accurate right out of the box, low recoil, and a lot of fun to own and shoot! Plus its neat looking.
My guess is that the atermarket bullet buttons mag catch was either keeping the shells or the spring from properly rising or maybe it was holding the mag either tot low or to high to feed properly. I had been getting failure to feed ( nose down) every other round. Many, including myself had thought the problem was either too much gas or too little gas--but it wasn't--the high quality factory SCAR 17 would have shoot fine if it hadn't been for the stupid after market bullet button. (In hindsight, I should have trusted in the extremely high quality of the FN guns and looked first at aftermarket modifications.)
Thanks again to all of you.