The Marlin 39A is the oldest and longest continuously produced shoulder firearm in the world. The current variation gold trigger lever-action .22 Caliber Golden 39A is produced by the Marlin Firearms Co. of New Haven, Connecticut. The Golden 39A was last constructed in Remington’s Marlin factory in Ilion, NY. Production ended with the bankruptcy and closing of the Remington Marlin factory closing and sale to Ruger in September, 2020.

A lever action is a type of action for repeating firearms that uses a manually operated cocking handle located around the trigger guard area that pivots forward to move the bolt via internal linkages, which will feed and extract cartridges into and out of the chamber, and cock the firing pin mechanism. This contrasts to other type of repeating actions such as the bolt-action, pump-action, semi-automatic, fully automatic, and/or burst mode actions. A firearm using this operating mechanism is colloquially referred to as a levergun.