Apparently this started at the beginning of they year but Holosun now requires you to register your sights in case of warranty repair. Since I have a pile of Holosun optics, it'll be some work to go through and register them all mostly because they ask where you bought it, the price and date. So, just wanted to let everyone know to get ahead of the game and register them when you make a purchase or start now in going back to register the optics you already have.

https://www.holosun.com/index/category/items/id/94.html