While I was looking for a link, Rob beats me to the punch.

by Hoot , Diversityville, Liberal-sota, Wednesday, December 11, 2013, 10:07 (3943 days ago) @ pokynojoe

I have the first model as well. It works great for getting on paper mox schnell. It can sometimes be picky about the light source but, when that happens, I just move around, room to room until I find one that works---usually difuse light like through a sheer curtain. I've used it on open sights, both handgun and rifle, as well.

New model Leupold => http://www.midwayusa.com/product/675745/leupold-zero-point-bore-sight

This Bushnell looks like the first Leupold => http://www.midwayusa.com/product/195769/bushnell-magnetic-bore-sight?cm_vc=subv1675745

There's probably better prices if you shop around (Midway has crept up over the last few years).