There are a lot of smaller Made in USA rocket manufacturers. Semroc, Flis kits, Custom just to name few. The Apogee plastic fin rocket kit (I forgot it's name) is Made in USA s I sold them the fin can mold for that kit. I used it in the Starlight Minute Man kit.
Mr. Bob
Starlight Dude
Loco Bob's Hobbies Grovertown, IN. 574-767-0660