I actually like the light as it is. The anodizing is a good match. Sure, there are brighter units out there than the KX4 but there is no ambient light here, so 120 lumens is good enough for a personal light.
Interestingly, it's brighter than my Fenix PD30 Q5 on high, and I very rarely use the 'turbo' mode on the Fenix anyway, so I think I will leave it be for the time being and just use it for a while.
Although I have to say, those Oveready triples seem very tempting!