Does anyone know if CDI made LA DBM that would only work with a SA AI mag? I am looking at purchasing a stock from a gentleman and it currently has a flat back Long action bedded in it. The gentlemen is saying it only feeds SA AI mags. I believe the gentlemen but I don’t know what benefit you would have to running a short action caliber on a long action, but with short action mags. It’s seems that the benefits of doing that(Able to load longer COAL) would be negated.