Nitecore Crenelated Bezel

I just got the Nitecore crenelated bezel which fits their 40mm OD front flashlights. This is a relatively deep three crenelation design which I have installed on my SRT7. It also fits the EA4 and other lights. It adds about 18mm or just under 3/4” to the light length and the crenelations cut into the beam edges enough to give the wall reflection a triangular shape.