The Vortex Sparc Solar is Vortex’s long awaited entry into the budget solar reddot optic. I got this optic to put on one of 10.5 inch ar-15 pistols that I had recently got. I have the holosun 403c and enjoy it a lot so I got the vortex's option to see how it stacked up. The reddot is slightly pricier than its competition but offers a better build quality in my opinion as well as a staggering 150,000 hours of battery life. The optic is super easy to use and offers a great picture quality while you are looking through it. The optic is durable and works flawlessly, which I have come to expect with Vortex’s Optics. In conclusion, I think that this red dot is a great buy but may be a little pricey for what you get. It is a for sure buy if you can find it on sale.