Originally Posted By: rafowell
Howard Glass has been the primary manufacturer of the MIL-M-18371E for the last decade or so, and they are made available through distributors for civilian purchase online. Quality commercial equivalents are also sold by Coghlan's, Rescue Reflectors and Vector I.

Be careful, I normally have bought Coglan's Glass Signal Mirror, which is a decent mirror for use with my Survival Classes. Recently I found a number of examples from Coglan's where they have replaced the Glass Mirror with a Plastic Mirror and kept the packaging and the price the same.

Avoid none glass Signal mirrors and buy only good quality mirrors. Doug's Warning should not be taken lightly!
Bruce Zawalsky
Chief Instructor
Boreal Wilderness Institute