To Infringe: To Enter a forbidden place: To Cross Over A Red Line. The Powers of the President, the Supreme Court and Congress are far more limited than one can imagine from reading only the Constitution. Government is restricted from all power except as listed in the Constitution. Government has no Rights at all because Rights apply only to an individual. Government is certainly not an individual so it has no Rights.
The power to regulate guns was forbidden to the government. Common Sense is not an argument that overcomes the prohibition against government not only for guns but for weapons. Weapons are what is meant by Arms.
Can a citizen own a fighter jet? Many American’s do. Years ago China sold fighter jets and several were bought by Americans. The armaments had to be removed.