Cloud Mt Armory now has a retrofit kit to fix your AR that was designed to shoot 50AE. The new caliber is called the 502 Thunder Sabre. It not only works but works great and you dont break bolts and extractors. This is a wonderful new cartridge. Will work also in M16 applications too.
Outstanding!!! I just sent an e mail to our staff gunsmith on something like this. I told him I wanted him to start working on a 50AE upper project. Do you have any photos or a web page I can take a look at???
Director TMTA, Inc.