Feyachi Bore Sighting Laser 223 5.56mm/9mm/7.62x39mm Switch Red Dot Laser Boresighter with Tail

What can I say? I like the idea, and it is a very neat device, but I can't verify how accurate it is in its sighting (until I can get to the range and see how close/far away my optics are zeroed). But, for now I will say that it is fantastic (so far)!

Bore sight works as described. Laser came "true" so there was no adjustment needed. Got both the .223 and 9mm versions.

Product would not switch on and stay on when screwed in with batteries. If you hold it down it stays on, but it works when not screwed together you can hear the click.

Well made with precision. Works very well. The on/off switch is a wonderful feature.

This is difficult to review and I'll explain why. All the available videos do not show an on and off switch. Very simply, it stated that all you do is screw it in and the light turns on. The directions are terrible, but you don't have to be a rocket science so you'll be okay. Anyway, it appears that they've upgraded this item, meaning that there is actually a rubberized on and off switch at the tail end of the device. You simply click it on, and click it off. Why they didn't do this from the beginning I have no idea. Now the funny part is that they tell you in the directions that you should unwrap the batteries even though they're wrapped together, meaning that they're stacked with a blue plastic surrounding the batteries to keep the pair together. They sent three pairs of batteries. You can fit three batteries in it but you will never get it closed so I presumed that it was only two batteries. Another thing is, because the directions are so poor I can imagine that when somebody tries to chamber this they might actually try to put this in the magazine! Never, never try to put this in the magazine this is manual chambering meaning that you have to pull the slide back, lock the slide, insert while it's turned on, release the slide lock, and you're ready to go. I use this to sight in an optic and I couldn't have asked for a better match. I simply, shine this down the pike.. the barrel, and out the other end was my Red Dot. From there, just like any other b o r e s i g h t device, you adjust the optic around the Red Dot that is presented by the optic once they match, meaning that they overlap you have a perfect b o r e s i g h t! In summary, I took away one star because the directions do not match the product because of the upgrade and because I would imagine that some people may not be able to quite figure out exactly how to use it. This does not make you stupid, because it took me a few seconds to try to figure it all out myself. But once you do it is an ingenious product. One final thought as it comes in a very nice plastic case that is very durable I believe that the material that the b o r e s i g h t e r is made out of is also pretty durable it's not thin at all like, you could drop it and it would be just fine. I know this is a rather long review but I wanted to get it all in there so you know what you are up against but I would definitely buy it again in fact I bought the small and large caliber version

This looks like a nice (made in China) unit but the batteries are vacuum packed, and impossible to open. Don’t cut yourself as there is no good way to open the battery vacuum packing. They give you two set of batteries which is nice. I could not find the type of batteries in the paperwork ,but looking at them through a magnifying glass they are a #LR41. The instructions say to remove the batteries each time but the unit has an off/on switch. Instruction indicate three batteries as a time are use, but only two fix for a 9mm.

Excellent tool for setting up red dots or laser sights. it even has a on/off button to save battery. This one uses a 2 pack of batteries and it comes with 3 sets. So far I am still on the first battery pack. I had to turn my multi red dot center dot off and use just the circle to set up my red dot. At the range the gun fired very close to what I had zero'd, I was free shooting and aim is always a factor. A bench rest would better confirm if this laser cart was accurate. My groupings were pretty good so I am very pleased.

The 9mm model is very good. I initially had an ‘issue’ with the switch on the rear of the laser cartridge. But then I realized the reason it was not staying on was due to the heat shrink on the battery pairs extended past the end of the batteries enough to block the switch in its on position. Trimmed the heat shrink and it works flawlessly.