Allows you to reuse factory ghost ring sight - Simple solution for mounting optic red dot and ammunition storage - Leaves the classic look and feel of the firearm - Includes 3 MI-USH universal shell holders - Shell holders can be positioned vertically or horizontally - Up to 6 rounds can be positioned for storage - Nylon-tipped stainless steel set screws protect the side of your firearm's receiver in the chance of a side impact - Rail is constructed from Hard Coat Anodized 6061 Aluminum for a lifetime of service - Includes mounting screws - Patent Pending - Made in the USA - Lifetime Warranty - Works with Smith & Wesson 1854