Yes,
The U.S. Boarder Patrol, Federal & State prisons , U.S. Postal Service and a few other government agencies bought S.S. gov. models .Some had the folding stock, a 14.5" bbl and single shot, three round burst and full auto .
When I was working for one Private Security company we had a locker full of 14.5",single shot,three round burst, full auto 's with folding stocks.
We used them mostly for guarding H.V.T.'s while transporting them from place to place and in a few Government contracts we had.
Believe it or not on full auto those little rifles were quite a handful to control. An M-4 on full auto is MUCH easier to keep on target.
Lou