Hi, I want a C-more red dot set up for using on a range only G17. I have seen the 'THE' accessories / Glockmeister style mount and others talk about carver mounts. Which would be the best for me? I cant find anywhere online selling carver mounts. I have Heinie slantpros fitted and would like a mojnt that lets me see these as well. Which C-more sight would you recommend? The railway seems the popular one? And what is the 4/6/8/ MOA about? Sorry for being dumb!