Out of the box, Kimber. If you can like and shoot a truly featherweight rifle. Under 6 lbs in a short action, under 7 in a long action. If you want a lightweight rifle that can come in between 7-7.5 lbs for $1200 buy a used Remingon or Winchester and buy an Edge for it. I prefer Winchester.
No one makes a lightweight stock for the Ruger. If you want a heavier 8+ lb synthetic I have no complaints with them.