👉 A carbineer is a type of weapon used in the United States military. They are typically rifles, but they can also be converted to include a carbine barrel or other components for use as a semi-automatic rifle. The carbine is often referred to as a "carbine" because it has a long barrel and a bolt action mechanism similar to that of a bolt-action rifle. Carbineers have been used in numerous conflicts, including the Vietnam War and the Iraq War.