The scope rail shown here is an aftermarket - forget which one - purchased from one of RFC's sponsors.
Thicker than the usual Ruger.
They're also available in natural aluminum.
The mount on this is - again, fairly sure - a standard Ruger.
Big scope, granted, purchased for another rifle, but I wanted to shoot the rifle so that's its place of residence for a while.
To my eye, it doesn't look bad.
4 x 16 fwiw.
Scope mounts on both rifles are Weaver 1" low rings - trophy model I believe.
As an additional identification factor, they're most expensive of the Weaver rings for 1" scope and 22 groove mount.
About $12. at Wally World.
I think I can find a standard Ruger silver colored base and shoot some pics if it would help.