CVLIFE Rechargeable Green/Red Laser Bore Sight Magnetic Bore Sight Laser for Multiple Calibers Professional Boresighter with Magnetic Connection

I purchased this for my husband for deer season this year. He really appreciated the convenience of it charging with a UBS, no batteries to replace or to worry about proper disposal. He reported it worked accurately and he was able to site in his new gun easily.

Pros: Seems to work as advertised. It is smaller than I expected. Magnet is strong. Concentric circles allow for proper alignment. Inexpensive Lightweight Cons: The green laser cannot be seen in day light. I have the original device in green laser that this device is copied from. It is larger and has a stronger laser. However, this green laser works better for pistols.

Works great use this daily at work to aim a large hydraulic cylinder before pushing on an item. Love that there is no battery to keep up with.

This device has saved me so much money in ammunition. The green is easy to pick up from a distance. I like that it's rechargeable. The charge lasts a really long time too! My brother bought one after using mine.

I got the device and changed it to full. I used it a few times and wanted to charge it up to keep it in my range bag. Once the device was fully charged. I went to unplug it and got a bad shock from it. After that it would no longer charge. But another one if you need a bore sighter. This one is garbage and dangerous.

I like the fact that it is very small very easy to transport and it seems to work very well

I've had several different kinds of laser bore sight devices. Ones that are the shape of a cartridges, that you put in the chamber. But those tend to be slightly off center. Every time you put them in the dot shifts noticeably. I've also had the type of laser bore sight tools where you have dozens of little plastic tips, that you have to change to match your barrel's inner diameter. Those work pretty well, but it's a little fidgety to change the tips if you have several different calibers to align. Not so much if you just have one or two. But still a little bit of a pain. The CVLife rechargeable laser bore sight tool is ultra simple. Place it on the end of your barrel, turn it on. Adjust your sights so they match where the laser is pointing, at the distance you want the zero set at. 25 yards, 50 yd, whatever you want. And you're done. I tested rotating the boresight tool to make sure it was pointing true, and it definitely seems to be. The laser didn't shift at all no matter how much I rotated the device. So I'm pretty sure this is properly calibrated right out of the box. Set up literally takes half of a second. Basically, once you put on the end of the barrel and turn on the laser, the setup is done. Best of all, it recharges with USB c like everything should. Which is absolutely wonderful. I'm giving this device five stars out of five because I can't give it ten stars.

I've used it to adjust a red dot and a few lasers. I had a different laser bore sighter that would fit in the barrel, it had issues because it did not fit snug and some barrels were to short. I like this one because it is magnetic and attaches to any barrel no matter the length

This is the 2nd one I have purchased for a Christmas present, and these laser bore sights are absolutely fantastic.