Any gunsmith should be able to come up with this part. Look for one in the local yellow pages.
25 years old The Western Field Model 865 is a private-branded Mossberg Model 402 which was sold by Montgomery Wards from 1968-1969. The Western Field 865A, which featured a slightly larger forearm, was sold from 1970-1971. The Western Field guns do not have the checkered stocks of the Mossberg 402 'Palomino' and obviously not the Mossberg logo buttplate. It has the 20" barrel of the 402 Carbine (the Model 400 had a 24" barrel) and the tubular magazine will hold 15 .22LR cartridges. sales@countrygunsmith.net
YES
yes
It is marked on the barrel.
Check the barrel and receiver.
Have a Model M-846 (Montgomery Ward) semi auto with 18 inch barrel.
remove pin from end of magazine tube at barrel muzzle, pull magazine tube from forearm, forearm is now ready to be lifted off barrel
Generally it is stamped on the side or top of the barrel near the receiver.
Your Western Field model SB-312 double barrel shotgun was made for Montgomery Wards(western field) by the savage arms company.The Savage model 540D shotgun is the same shotgun as yours.If you go to the savage web site they may have more info on this model?
On top of the receiver, just behind the barrel, there's the release button. Slide it forward and the barrel should open up from the receiver, hinging near the bottom rear of the forearm. This is a single shot shotgun, so you can only put in 1 round at a time.
Loosen the screw on the forearm push up on the screw and the barrel will pull out
First, unscrew the magazine tube cap, located at the end of the forearm. Then pull the action back to about half-way, then you should be able to pull and jiggle the barrel and forearm free. To reassemble, slide the barrel and forearm back on, and pull the action back until the barrel slides into place, then rescrew the magazine tube cap.