If you have a sight, you may need this!
The CR2032 battery is a common battery used in many red dot sights to power the illumination of the reticle. This type of battery is compact and lightweight, making it ideal for use in small electronic devices. It has a voltage of 3V and a capacity of 220mAh, providing reliable and long-lasting power for extended use. Some sights use this battery in order for it to be powered. Please make sure your sight uses a CR2032 before purchasing.
(Packaging and brand may vary, but the battery will be in some sort of packaging)