I had a rear site mounted scope on my 91/30. It worked pretty well. Just make sure you use a bunch of lock-tite. Mine came loose after the 1st shot.
A man who has nothing which he is willing to fight for, nothing which he cares about more than he does about his personal safety, is a miserable creature who has no chance of being free, unless made and kept so by the exertions of better men than himself.