Great for some people - Wilson Combat Dome Head Safety

A note of warning: while the button does not protrude past the receiver, it does lay flush with it, which could make the gun more likely to go to fire in a soft case. It also is designed to more easily and quickly go to fire, which is why I would not recommend it for someone not proficient in weapons safety, or for someone who hasn’t considered the possible impacts of this design based on how they carry and store their weapon. That being said, for my purposes (law enforcement) it is perfect. The safety effortlessly goes to fire while moving my trigger finger to the trigger. It is slightly beneficial for off hand use as well. This thing does exactly what it is designed to do and is definitely an improvement on the standard design for certain applications.