I recently came across a decent fixed power scope with a low enough price tag that I had to get it. So now I find myself in need of an auxiliary red dot sight to mount on the Picatinny rail on top of said scope, but without available funds to buy a high-end name brand one. The TRS-25 is by far the cheapest option that I am willing to consider available to me, and comments on it have been overwhelmingly positive both on this forum and elsewhere. One LEO here mentioned in one of the conversations regarding this sight that their department has even approved the TRS-25 for duty use. Seems like the best choice for the time being. (And if I do end up replacing the sight at a later date, I do have other uses for this red dot.)
One thing however; nowhere have I been able to find out what temperatures the sight is rated to function in. Now I'm not expecting a sight for Arctic winter conditions or anything like that, but winters can get occasionally a bit nippy here and a lot of budget red dots do fail my expectations when it comes to operating temperatures. For example the well liked Primary Arms micro red dots are only rated for -10°C, which is not quite acceptable for my use.
Does anyone here have information on what temperatures the TRS-25 is rated to work in? Or failing that, experience running said sight in colder weather?