Excellent red dot at an incredible price point - Holosun HS503BU Micro Red Dot Sight

This Holosun was recently purchased for my MP5. I've always been a fan of military grade red dots , and this Holosun is a first for me. At first, I was skeptical about the low price but decided to buy one to give it a go anyway. I was drawn by the long battery life and the fact that I could choose between having a circle dot style reticle and the red dot sight.

When I received the unit, I was immediately blown away by the sharpness of the reticle and the clarity of the window / glass compared to the more expensive optics I am used to. The quality of the red dot far exceeded my expectations as I suffer from astigmatism and finding a red dot that doesn't smear is not an easy task. But the dot on the Holosun is bright and crisp making the unit very easy to zero. Other thumbs up for this unit includes turret caps that have a little knob to adjust zero built in, included bases that have a high and low mount, simple button layouts and an incredible battery life.

Are there flaws with this red dot? Sure. I'm not a fan of the battery compartment. The screws securing it are small and fiddly, so changing batteries in the field is probably not an option. It would be nice if they had printed the direction of the red dot adjustment on the casing instead of the caps covering the turret. The unit could be more rugged, but given the price, it doesn't really matter.

Despite these flaws, I've since become a fan of Holosun and would definitely be buying more of their red dots in future.