Review from my experience - Firefield Impact XL Reflex Sight

Bought this optic at my local sporting wear house for a good price (~60$) but was very disappointed in the product that I received. Very easy to install and zero however after only roughly 200 rounds the optic began to malfunction (mounted on my AR-15). The sight brightness/adjustment knob became very loose and thus the reticle would cut in and out after every few rounds. After attempting to tighten the knob, reticle was still hit or miss. I did not expect a long life-span for the price but 200 rounds seemed a bit short to me. This is the second Firefield optic that I had purchased and neither of them have lasted for more than 200-250 rounds. It seems as if they are not built for AR-15 recoil as they reticle goes out after a short amount of time. Overall, was just a waste of money. It looks nice of the weapon system but is not practical at all. Unless you are using the weapon system as a trophy on the wall or for pure looks, I do not recommend. If you are planning on using this brand for a lower caliber than .223/5.56 then it might be worth a shot. With that being said, would not advise for any AR use. you are best served to just save a little more money and go with a higher quality optic.