The build quality is excellent. However, depending on your rifle setup, you might need to mount it in the opposite orientation.

Love this thing, I built out a light with an arisaka body and a SureFire UE tail cap and always had flickering and dimming issues with it but now that I’ve put this on it I don’t have that problem anymore because the ignition switch fully depresses the button and puts even pressure across it aswell. Also love how you can have momentary activation or switch it to constant on

Works great, big upgrade over stock. Also fixed my flickering issue.