Just wondering, I bought this last year and I just noticed, it’s now 2020 and this model v2019 is still not shown on Ultratac official website. Could this model be a modded one? Not one that Ultratac has officially produced?
Not sure exactly what you are referring to, but these are two K18 2017 i bought a couple years ago:
The brass one on the left seems to be like yours but the silver one has a different tail cap.
Yes, the flat tailcap of the silver one is the updated version: v2019 SS. This version isn’t shown on the Ultratac website.