Unreliable, bad design - INFORCE Gen3 APL Glock Weapon Light, 400 Lumens

As many others have reported, this gen 3 light is a failure: after 100 rounds fired, the pins which hinge the push buttons walked out halfway, and the light would flicker and go to less than 10 lumens until i knocked on it. Fresh batteries and cleaned contacts, no difference. Returned it ti inforce, nreplacement light: same issues! Returning it again, buf faith is lost. That is why i say: don't buy it, it's junk. Pretty for instagram, that's it.