The Holosun HS 510C is one of the top-class products in this niche and have outperformed all other competitors with its top-notch quality and durability. Reviewing in detail and in comparison to Eotech, this Red Dot Sight (RDS) offers more flexibility in operations, easiness, and a hassle-free experience to shooters.
I did a quick review with all the details you'll need before buying this RDS here: Holosun HS510C Review