I have been using the EOtech Holographic sight for three years now. Nice not having to use a peep. What makes holographics nice is that there are two rings that you center, one inside the other. The one is actually projected as far as your target, which is equivalent to aligning your peep and pins twenty or thirty yards apart. They are a bit pricey and it took me a while to get it set up right, but I am happy with it........dabow