I know industry mobilized long before the miitary did to provide weapons to the early combatants, was this just small arms?

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The capacity of American military firms to produce large quantities of weaponry in a relatively short amount of time was next tested in 1914, when World War I broke out in Europe. Although the U.S. government initially adopted a policy of neutrality in the conflict, President Woodrow Wilson allowed American firms to sell arms and ammunition to the Allied powers. Desperate to supplement their own manufacturing capabilities, Britain, France, and Russia then contracted with American companies to produce large numbers of guns and cartridges. The British, for example, ordered one million Enfield rifles from Remington. As one such order followed another, American military exports jumped from $40 million in 1914 to $1.3 billion in 1916 and $2.3 billion in the final nineteen months of war. This marked the first time that U.S. arms manufacturers played a truly significant role in the international weapons trade.

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