I don’t buy any of the name brand expensive weapon lights anymore. I did at one time. They failed within the first few hundred rounds.
I started getting some cheap junk weapon lights on Ebay. Like fifteen dollar ones. 250 lumens or so (though they claimed 1000 of course) and of horrible tint. It was a light though and that’s what I was looking for. I did nothing to them except taking them apart and using potting epoxy on everything. The light itself held up well, never a hiccup and after 500 rounds was still going strong. What did finally start failing was the mounting mechanism on the light. Close to 1000 rounds and it just wouldn’t stay on the rail anymore and finally gave up the ghost. Light still worked.
So I had those lights on some pistols and pistol caliber carbines for quite a while. I don’t really use my AR-15’s for much so there are no lights on them so no testing with 223/5.56. Also I don’t have any lights on my hunting guns or shotguns. Though I do have a Armytek C1 that I am thinking of mounting on a scatter gun. It’s suppose to be a rugged light so I’ll see how it does.
Utorch came out with that weapon light. Link for it. I bought a few of them just because they were cheap enough and I wouldn’t care too much if they got destroyed and quit working. Looks like they are a copy of the Streamlight TLR1 I think. I have them on a few 9mm pistols, a 45acp pistol, and a KelTec Sub 2000 9mm carbine. Over 500 rounds on each of them and the light is still going strong. No problems at all yet.
I haven’t had them apart so I can’t say if they are potted or not. Regardless of potting or the lack thereof, they are holding up well. Worth the $17.99 I paid for them. The TIR lens in them is great and it’s plenty bright, I’d say 700 to 800 lumens or so. They say they require CR123’s but, I have some 16340 protected Li-Ion cells in them and they work just fine. Check them out and maybe try a few. I don’t buy into the Streamlight and Surefire advertising blitzkrieg they do in gun mags. The ones I had didn’t hold up well and I swore off of them. Maybe I had a few duds, maybe not, not real sure. For the money they charge I shouldn’t have to be worried about them not working.
But, yeah, check out that Utorth and maybe order one and see how it works out for you.