I went to the Mag Lite web site and got the part number for the kit, and found it at a large sporting goods store in Ohio (Fin, Feather, and Fur, in Ashland Ohio).
The kit had several lenses, a mount to snap the light into, and a few other goodies.
I use my 6 cell light all the time. It'll send back eyes out to 100 yards, providing it's not foggy or misty.
Good luck,
Rudy