The Model 336 features Micro-Groove rifling, ensuring that tags will be filled, mouths fed and the reign of America’s ultimate woods rifle will continue going strong. Its substantial sidewalls are cut out only where necessary for loading and ejection. For rock-solid reliability, heat-treated solid-steel forgings are used for the receiver and trigger guard. Featuring a nylon-reinforced polymer stock with M-LOK attachment slots, Dark Series rifles bring a modern look to the classic Marlin rifle.