Additional magazine buttons to replace the factory plastic buttons, and also for use with the Raven Eye Custom magazine loading tool. Each pack contains three buttons, made of PINK CNC machined aluminum. Note that the buttons cannot be installed on the 25 round magazines that have the limiter that only allows for 10 rounds to be loaded. If you live in California or New York, you likely have these. These are compatible with the factory 25 round magazines that allow for 25 rounds, or the much shorter 10 round magazines. Product manufactured by Raven Eye Custom - Rimfire Perfected. More information available on our website.