I just received my first AR. It is a R-15 Full stock with a 22" barrel. I will be using it on coyotes in open pastures and shallow woods,mostly open. I have narrowed my scopes down to 3-9x 40 with balistic recticals, now I am having a hard time in picking from a VX1 ,Nikon or Burris. But I really need help in picking my mounts and where to get them, I am new to picanty rails. Thanks for your comments!