Triple Duty Universal Boresight with Red Laser

Works really well as long as it is in dim light which is not a fault in the device. Just in bright light a green laser shows better with the human eyes. I have the green but my eyes saw it as blurry and 2 or 3 spots until I walked right up to where it was shining and it was nice sharp green dot. With this I ordered the red version and nice and sharp but needed lower light to be seen.

Most excellent product, easy to use, with any rifle or handgun