Springfield Armory Incororated (SAI) has not made any M1 Garand's for quite awhile now. A "new" M1 might be found on the market, but a "current production" M1 aint gonna happen, as they are not being made nowadays.
If you end up with a CMP M1 that happens to have Springfield Armory stamped on the receiver heel, it will not be from SAI, but from the original government run Springfield Armory.
FWIW....... SAI M1 receivers were cast receivers, where as the original's were forged.
Not saying that one is better than the other here, but pointing the difference out so the OP knows what he is a looking at.
If ya really want one, get it now, as they will eventually be gone, and only go up in value afterwards.
I have 3, and they are not for sale.