I love this lock, compared to floor mounted bracket systems. With this lock, your rifle is still mobile and can be positioned different ways, depending on how much room you have. You put your own lock on, so you can get as beefy as you want, (and will fit), no handcuff key override, which are easily pickable or opened with readily available keys. Also, it does not fit around your optics, so unlike standard mounting brackets, it will work with rifles with optics attached. The only way they are getting into this would be with a grinding wheel, and that would be very awkward inside a vehicle. Definitely stops the quick smash and grab thieves. I have been looking for something like this for a while.