called "long eye relief" or ler scopes. something like pistol scopes but from what I have read eye relief can vary a few inches when holding a pistol versus a scout rifle setup.

I have been looking at a lesser expensive scout option for my m1a scout. there's a guy on YouTube running a leatherwood ler scope on a m1a and from what I have read on the web it seems to be a good option if you aren't looking to spend a lot.