from a technical point o view such things are interesting
its allways thrilling for me to get the maximum out of a given action but there are some prejusdices against rotten plastic on guns in me and the AR 15 was the mother of this crap idea.
like the .50 Beowulf because it was just this - the maximum in the ar 15 - but dont wish to have a AR. think about converting a bloody Ruger Mini 30 because it looks like something the good taste police allow but there are to many projects here and I will never find the time.