The serial number on a Western Field M865 shotgun is typically located on the receiver, which is the part of the firearm that houses the action and is attached to the stock. You can often find it engraved or stamped on the left side or underside of the receiver. If you're having difficulty locating it, consult the owner's manual or check for any markings on the barrel as well.
Various other websites list this as a Western Field brand sold at Montgomery Wards but manufactured by Mossberg (hence the M in the model number). The Mossberg model number is 402
Western Field was a store name used by Montgomery Wards. The M865 was most likely manufactured by Mossberg and relabeled from the Mossberg Model 402. The rifle was a lever action chambered in 22 short, long and long rifle. It was made 1961 to 1971 and value would be somewhere between $85 and $250 depending on condition.
Try e-gunparts.com
It is worth $1,000,000,000.I would disregard the prior answer.Some on this site have nothing better to do than make jokes at others expense!I have seen the westernfield .22 cal rifles selling for between 60-100 dollars depending on the overall condition of the gun in question.There is not much demand for these older montgomery wards guns.