You can find the Midwest Marlin 1894 Rail here Fast $9.95 shipping! Orders over $200 ship for free!
The Midwest Industries Marlin 1894 Rail is a single piece 5" long Picatinny Scope Rail. Machined from 6061 aluminum and hard coat anodized. Also works with Henry 38/357, 44 Mag, and 45 Colt receivers. Weight 1.6oz. Made in USA. Includes mounting screws.