The Mossberg 500/590 Oversized Safety by Vang Corp Systems is the safety button you’ll want to have on your Mossberg 500 or 590 pump action shotgun. It is an oversized safety button, which means it is easily accessible when you’re in an intense situation. So, let’s say you’re a police officer and you are suddenly being shot at. In this situation, you’ll want to be able to disengage the safety of your weapon as quickly as possible so you can shoot your attacker. The Mossberg oversized safety button will be a life saver for you in this situation.