XS Sight Systems Lever Rail Features The XS Sight Systems Lever Rail is designed specifically for Henry steel frame Big Boy round barrel carbines chambered in .357 Mag with caliber-specific fitment accounting for differences in receiver dimensions and barrel contours. This rail will only work on rifles with steel receivers and round barrels so shooters should confirm compatibility before purchase since it does not fit Big Boy .357 Mag X carbines. Mil standard 1913 mounting slots give the rail broad versatility supporting conventional scopes low powered variable optics scout scopes and red dot sights on the same platform. This rail is also required when installing XS Ghost Ring Sights on a compatible Henry rifle making it a key component for a complete iron sight upgrade. Constructed from lightweight aircraft grade aluminum alloy the rail is finished with a hard anodized black matte coating that provides durability across years of field and range use. That combination of light weight and rugged anodized protection keeps the rail from adding unnecessary bulk to a traditional lever gun while standing up to regular handling. Proudly manufactured in Fort Worth Texas this rail reflects XS Sight Systems commitment to American-made optics mounting solutions. For Henry .357 Mag owners looking to add modern optics capability to a classic lever action rifle the XS Sight Systems Lever Rail is a purpose-built reliable solution. XS Sight Systems Lever Rail Specifications Manufacturer: XS Sight Systems Model: Lever Rail Compatible Hosts: Henry Big Boy .357 Mag Steel Frame Material: Aluminum Finish: Black Matte Anodized Mount Type: Picatinny Style Pieces: 1-Piece Country Of Origin: USA Warranty: Mfg Limited Available At: GrabAGun