For flexibility in optic mounting the Lever Rail system is the answer. Made from durable aluminum with picatinny slots and a hard anodized finish the Lever Rail allows precise eye relief adjustment with any optic. It’s compatible with conventional scopes scout scopes and red dots. Expand your Henry 45-70 scope mount options with the XS lever rail. Kit Includes: lever rail front sight rear sight aperture screw kit pillar assembly blue thread locker insert with instructions