The M1907 two-piece leather rifle sling was the most common type of sling used with the weapon through World War II. In 1942, an olive drab canvas sling was introduced that gradually became more common. Another accessory was the "winter trigger", developed during the Korean War. It consisted of a small mechanism installed on the trigger guard, allowing the soldier to remotely pull the trigger by depressing a lever just behind the guard. This enabled the shooter to fire his weapon while using winter gloves, which could get "stuck" on the trigger guard or not allow for proper movement of the finger.