Just to really crack y'all up, the local police impounded all my weapons at one point,(LOOOONG Story) including the M-1, and subsequently returned them all to me (including the M1). I had to write a letter to the County Prosecutor.
I will never get rid of it, it was my dad's, he served in WWII (though he bought it after the war). It's an Underwood, made by the Underwood Typewriter Co. (for you M1 buffs out there...).
Garand IS okay, you can still buy a surplus Garand cheaply through the government's gun club program (Cherry Ridge does some of this).
You are very lucky that the detective or the Prosecutor's office did not catch it.