Formations of the U.S. offers a wide range of fantastic resin-cast detail, conversion, and accessory sets for Shermans and other Allied armor. Known as the "One Stop Shop" for Sherman modeling, Formations produces products that are highly detailed and meticulously researched to insure accuracy. And they're easy to build, too! Formations' motto is "For the Display Case - Not the Closet!"
From the Formations website:
"Converts the Tasca kit to the rare small hatch M4 Composite. Master pattern created by Mike Canaday using measuremnts and photos of an surviving vehicle. Includes upper hull, turret shell, hull hatches, and fenders. The fenders are the type used during the re-manufacturing program. Parts can be used with other Sherman kits with minor modification. All parts have subtle cast texture and accurate foundry marks."