Maglites are decent. BUT the tube walls are VERY THIN. Can dent and bend easily. I tried to destroy one but really dented it real bad. Electronics powering light got damaged bad too.

The design of Batlight has to be in separate ( 2 - 3 pieces ) so that structural power is much stronger. Very important is thickness of diameter of tube. So when striking lessens chance of breakage.

I personally would use stainless steel or high carbon steel. Use the latest LEDs, run on 3 - 4 26650 OR 3 - 4 18650s. With aggressive SS strike bezel removable of course. similar to Wowtacs BSS Vol 3.