I want to get a red dot and have decided on some Primary Arms products. My question is, would you recommend the micro, the full size 30mm 3MOA, or the Multi-Reticle 2MOA one. What are the pros and cons of each? I only have around $100 or so to spend. I dont need the save alittle more and get this or that optic stuff. I dont want or need a high dollar optic for my immediate needs. Thanks.