I would try www.e-gunparts.com they have tons of parts for sale at good prices most of the time.
I have quite a few Savage/Stevens parts. repair@countrygunsmith.net
Numrich Arms (GUNPARTSCORP.COM) lists several parts for the Stevens mod 94 in different gauges, depending on the exact model.
Your gun is a Savage/Stevens Model 86. gunpartscorp.com has some parts. After that it is a long search.
NUMRICH HAS PARTS FOR THE STEVENS 66B
If this is a single shot break action shotgun, I'd check try parts for a Stevens 94 or maybe a Harrington & Richardson Topper. Numrich Gun Parts at the related link may be able to help.
Try e.gunparts.com
I would try Numrich gun parts corp.They may be found on the web.
HI I have a Stevens 22 long single shot. I like to have a .17 HMR or a .17HM2 Barrel on it will it work
You might find what you need at webdept@gunpartscorp.com .
You can find most of the parts at e-gunparts, to find them do a google search of "e-gunparts".
Contact Customer Service for Savage Firearms. They have owned the Stevens name since the 1920's.
Try Gun Parts Corp (Numrich) or Jack First.
check with: dixiearms.com