Nikon A-Series Base Marlin 336 Black Matte Aluminum by Nikon Optics The Nikon A-Series Base Marlin 336 rings are specifically designed to fit and function well on the Marlin 336 rifle. The Nikon A-Series Base Marlin 336 have a matte black finish and come as a matched set. The Nikon A-Series Base Marlin 336 are constructed of aluminum and are very durable. The lightweight design of the Nikon A-Series Base Marlin 336 rings will help prevent further fatigue when stalking game. The Nikon A-Series Base Marlin 336 rings fit Weaver and Warne and Picatinney style bases. Features: - Light weight - Strong and durable Specifications: - Type: A-Series - Fits: Marlin 336 - Weaver and Warne and Picatinney rails - Material: Aluminum construction - Finish: Black Matte