You wrote:
“I find it odd that those inputting here don’t know that the M 1 carbine came in a semi auto style and one that had a lever to go from semi to full auto.”
NO! What’s odd is that you’re confusing the M1 Carbine with the M2 Carbine. Note: We did not make that mistake. You also apparently don’t know that there’s an M3, but we’ll just let that go.