Ultimate Night Vision Rico Micro Dovetail Picatinny Shoe Tan. It is the combination of a standard dovetail shoe commonly used on helmet mountable night vision optics and the MIL-STD-1913 picatinny rail used on weapons platforms. The PICTAIL 2 was redesigned to increase compatibility with new weapon and helmet mounting interface hardware that has entered the market since its original creation while still maintaining the compatibility of the original PICTAIL with standard dovetail receptacles used in helmet mounting interface hardware made by Wilcox KVC and others. Specifications for Ultimate Night Vision Rico Micro Dovetail Picatinny Shoe: Manufacturer: Ultimate Night Vision Condition: New Package Contents: Ultimate Night Vision Rico Micro Dovetail Picatinny Shoe Ultimate Night Vision IRAY-AC59-T: Rico Micro Dovetail Picatinny Shoe Tan