JavaScript seems to be disabled in your browser. You must have JavaScript enabled in your browser to utilize the functionality of this website.
When talking about red dot sights, the most commonly used footprint is the Docter/Noblex standard. It contains two holes for screws and four sockets to hold the pins on the mount/adapter, one in every corner. Currently, there is a wide variety of mounts for this footprint, which is one of the main reasons why it is used by numerous manufacturers. Docter/Noblex standard is easy to use and reliable.
*The red dot sights have a Docter/Noblex footprint, but the adapter provided has threaded sockets that are broader than adapters intended for a Docter/Noblex footprint. Ergo, thicker screws are included. These red dots can be mounted on an adapter intended precisely for the Docter/Noblex footprint, but the provided screws are not useful – thinner screws are required.