The red fiberglas stock I got took a little filing to get the right fit. Even then I am not too sure. I couldn't get the right eye relief with my scope, but I bought a cheap compact. I had a K-Mount added to the receiver, and that involves drilling and tapping the receiver, and then a permanent scope base is there. It was dead on accurate and stayed accurate. Takedown was a lot more time consuming, though. I liked this, because every time the bolt slammed back with the cover mounted scope, my receiver cover would move, affecting the accuracy. All this I say in the past tense, 'cause I sold the SKS last summer. I used it for my groundhog gun, and I got a few, but I wanted to buy a new ccw pistol and took the proceeds from the sks sale and bought a KelTec P-32.
Now I need a new groundhog gun and have decided on the Marlin .22 mag. I think the model is 822
------------------
Knock twice. Rap with your cane. Feels nice. You're out of the rain. We got your skinny girls. Here at the Western World
from Steely Dan's "Western World"