- The magazine release button is depressed. The magazine release button is located at the bottom of the grip, behind the trigger guard. If it is depressed, it will prevent the magazine from being fully inserted into the gun. Make sure that the magazine release button is fully released before inserting the magazine.
- The magazine is not inserted correctly. The magazine must be inserted fully into the gun, until it clicks into place. If it is not inserted correctly, it will not be held in place by the magazine release button.
- The magazine is damaged. If the magazine is damaged, it may not be able to be properly inserted into the gun. Check the magazine for any damage, such as cracks or bends, and replace it if necessary.
- The magazine spring is too weak. The magazine spring is what holds the magazine in place. If the spring is too weak, it will not be able to hold the magazine in place. Replace the magazine spring if it is too weak.