two MOA only : This dot is kind of smaller which makes it specific. The downside is it may be hard to “pick up” upon drawing the weapon. For anyone who is expert capturing red dot sights on pistols then this may not be a problem for you. This https://garrettmzpzk.wikiexcerpt.com/3497049/5_tips_about_fn510_accessories_you_can_use_today