Extension rings - Weaver Extension Top Mount Rings

I have several sets of these on many scopes. You get the right eye relief you want to put the scope just were you want it. Work great and are reasonably priced. I use them a lot on T/C Contender carbine's. You can leave the rings on the scope but switch scopes from hunting to target etc. with just a coin or screwdriver. Back and forth when ever you want without much hassle. With some set ups it maybe the only reasonable way to mount your particular scope to your rifle. Try them , I think you will like them.