OddladThey are not Clones. They are made from the same Technical Drawing provided by the Military per the awarded contract. There slight differences between AO and RE. RE has made there own modifications to make a much better quality product.
OddladAO is not to compare with Randolph, AO prepoduced in China, Randolph 100% produced in USA. Furthermore better quality compoments (nose pads, lens). Only AO is the more authentic version and has been on the moon .
OddladThe owners of Randolph used to be American Optical employees, so it's not surprising they're so similar. They're also located in Massachusetts BTW.
OddladI have both and the AO version always slides down my nose, whether with bayonet or curved arms. The RE version stay put even when sweaty. They also feel much higher quality.
http://aoeyewear.com/