A couple years ago, I took a Knight ML in on trade, and it had a High Country 3.5 - 10x40 Scope on it. Can Rifle scope. If it is a decent scope, I am thinking about puting it on my Accura V2.

There is no problem in doing that. All I suggest is pay attention to the eye relief. Muzzleloaders can for some reason catch you with the recoil. I like at least 3.75 inches.

Do you know if it is a "rifle" scope? Or is it a "shotgun scope"? I am wondering how it will hold up with the recoil of the ML.

even if its a shotgun scope, it will hold steady.

I never heard of the scope before so maybe run an internet search and see what you can come up with.