Tipfun Bore Sight for 357mag/38spl Special Red Laser Bore Sighter Red Dot Boresighter with Batteries for Hunting and Shooting

I have a couple of 357 Super Mag firearms. I recently swapped a red dot on my TC 357 SM with another model. I'm a retired Engineer with my own smallish machine shop, so not a newbie. When I first installed the batteries, I was concerned that getting the '+ facing up' might be annoying. I couldn't have been more wrong. They seem to naturally land that way. Although a toothpick makes flipping them over, easy. When I first tried to zero the new red dot, I was kind of confused because I could only see one dot. I was very happy to find that the laser AND red dot were exactly aligned. My luck is never that good. I later made a small device to check if there was any 'runout or offset' of the beam. None. Zero movement while rotating the laser. Very impressed.

Decent product. Not super accurate. Was good for sighting in my 38 special.

Laser stays centered when rotated. Works well in daylight at least up to 20 yds. Fit well in my 357 GP 100's cylinder. Only complaint is that there is no way to switch off the laser without taking out batteries.

Worked well and came with 2 sets of batteries.

Does exactly what it is supposed to do. Spot on, worked perfectly

Well it technically works. That's good. But they sent me a used one that had been cut open, half the batteries drained and then subtly put back. People need to stop being lame and leaching off other customers. The thing I dislike about the product itself is that there is no on/off switch. So the laser starts to shine while you're placing the batteries--which can actually be dangerous if you hit yourself in the eye. And I just can't really store the thing, it's just a pile of loose batteries that probably won't be any good the next time I go to use it. It's practically a disposable device.

Helps with aim and awareness. Solid buy

Work great!