kags, there are questions asked to relieve ignorance, but, no stupid ones in this forum. believe me, you know something others do not. let us share. i am personally ignorant of many many things. learn something every time i check in here.
military firearms are u.s. govt property. the army cant sell them.
they turn them in and some other agency disposes of them. like the garands. many are chopped up and sold for scrap metal. some make their way to the civilian marksmanship program. they sell them, with some restrictions, and good prices , to you and i for use in marksmanship training programs.
if you dont have a garand, get you one. that is one fine and sturdy rifle. qualifying for one is very easy. somewhere on TFL, i suspect someone has posted all the details. do an archive search.
at one time they sold m1 carbines and 1911's too. think that is history now. glad i got one of each while getting was good.