((a)) ** .—** The President, through the head of any executive department and on terms the head of the department considers expedient, may sell to a person, another department of the Federal Government, or the government of a foreign country engaged in war against a country with which the United States is at war—
((1)) war supplies, material, and equipment;
((2)) by-products of the war supplies, material, and equipment; and
((3)) any building, plant, or factory, including the land on which the plant or factory may be situated, acquired since , for the production of war supplies, materials, and equipment that, during the emergency existing on , may have been purchased, acquired, or manufactured by the Government.
((b)) ** .—** Sales of guns and ammunition authorized under any law shall be limited to—
((1)) other departments of the Government;
((2)) governments of foreign countries engaged in war against a country with which the United States is at war; and
((3)) members of the National Rifle Association and of other recognized associations organized in the United States for the encouragement of small-arms target practice.