I thought use of one required a federal permit.
My friend has several automatic weapons. Sheriff of his county has to sign off. Has to carry the proof from the feds with him when he uses them.
Been to the gun range with him. Can burn through some bullets.
Could’ve sworn the ‘silencer’ (is a misnomer as it doesn’t silence the discharge or sound like it does in the movies) required fed permission as well.
/johnny