Includes: 1 inch Scope Mount, Hardware Materials: 6061 Aircraft Grade Aluminum Compatibility: Marlin 336/1894/1895 Series Rifles Weight: 3 oz Warranty: Lifetime Exclusively from Monstrum, the MAR-05 Dual Ring Scope Mount is a dedicated scope mounting platform compatible with the Marlin 336/1894/1895 lever action platform. The rings are 1 inch in diameter for precision mounting of standard 1 inch tube scopes. The rings are offset two inches forward to provide more eye relief and more comfortable head placement. All Monstrum scope mounts and accessories come with a lifetime guarantee.