What type of rail is on the mini on the right? Also, isthat a Burris Fast Fire on it?As said, the stock will fit, but there will be a gap on either side of the mag well bracket.
Just get a synthetic stock from Midway or Brownell's made for Mini-14, and it will come with the necessary hardware.
Good move to ditch the ATI folder and go with the Ruger synthetic. I've tried most of the stocks out there, and the Ruger synthetic has become my favorite.
It's light, stiff, trim, and grippy only where you need it to be ( the checkering).
Only thing I don't like about it is it only comes on black. It would be great if Ruger would make them available in O/D. Green, Tan/Brown and Grey.
I put Cerakote on my stock when I did the metal in Cerakote.