The M1 Carbine is a lightweight, semi-automatic rifle used by the US military during World War II and the Korean War. Here is a labeled diagram with points describing its features:

• Barrel: The long metal tube that the bullet travels through.
• Front Sight: The device at the end of the barrel used to aim the rifle.
• Bayonet Lug: The attachment point for a bayonet that could be used in close combat.
• Handguard: The wooden or plastic guard that covers the barrel and prevents the shooter’s hand from getting burned.
• Gas Piston: The component that takes the energy from the fired bullet and uses it to cycle the rifle’s action.
• Receiver: The metal frame that holds the rifle’s internal parts and provides attachment points for the stock and other components.
• Bolt: The part that feeds and ejects the cartridges and also locks the rifle when fired.
• Magazine: The detachable box that holds the cartridges.
• Trigger: The lever that releases the sear to fire the rifle.
• Sling Swivel: The attachment point for a sling to carry the rifle over the shoulder.
• Stock: The wooden or plastic piece that supports the rifle and provides a grip for the shooter.
• Rear Sight: The adjustable device used to aim the rifle.