I recently purchased a Springfield Armory standard M1A from our local law enforcement dealer. Does anyone know the differences (if any) of an M1A that would be sold to LE agencies? It came with a 20 round mag, and I thought that the standards came with a 10 round. Other than that I don't know what could be different. Springfield Armory doesn't make full auto capable M1A's do they (I know, stupid question, but I thought I'd ask, I have selector parts coming to make a dummy switch for the M14 stock I have, and I don't want a headache on my hands).