Cant beat it for the price. - Holosun Paralow Circle Dot Sight with Mount

The HS515C is the older model, which is why its makred down the way it is. Compare this to higher priced Holosuns, and you will quickly see this is an unbelievable deal while it's still available. The only feature it does not have is the "shake awake" and the windage/elevation turrets dont have the built up body for the added protection, but you're getting everything else that HoloSun is known and respected for. I almost came back to buy a couple more just because of the deal.