I guess they (NC Star) work for a minute but I've seen more broken or "not working" than I have working.
The look I give when someone asks me to fix their NC Star:
View attachment 4597563
Every time someone ask me about there cheap red dot not holding zero, or flickering, or just not working at all. Usually a boomer with it mounted directly on top their bear creek build with no riser (hurts my neck just looking at it) I send them this