The m822 is the same as a mossberg 640. The clip is available from G-C Gun Clips Inc, PO 4, Viola Idaho 83872. Phone 208-883-4552. Price is $30 shipped.
The Revelation 107A is the same as a Mossberg 640. Magazines are available from jocoemprise.com for $35. I'd head down to some local gunshops to see if you can find one cheaper.
You might find a magazine for one at egunparts.
One can find a clip for a 22 caliber New Haven Mossberg rifle through local gun retailers. These pieces can also be found through gun classifieds and gun manufacturers.
Find a good metal shop and provide them them the dimensions.
Mossberg or Savage/Stevens? Any particular model? sales@countrygunsmith.net
Made by Mossberg. We have magazines. gunshop@nctv.com
We are going to have to assume you mean a Western Field M822A rifle in .22 Magnum. These guns were made by Mossberg for Montomery Wards and are basically the same as the Mossberg 640. That model is obsolete, so perhaps you might try doing an internet search for 'Mossberg 640 Owner Manual' and see if somebody has a repro available. sales@countrygunsmith.net
Your Montgomery Ward's shotgun was made for them by Mossberg, and is likely a Mossberg model 85 or 85b. Gunpartscorp has 20 guage magazines on their website (under Mossberg, Model 85b) for about $32 plus shipping.
This Westernfield is the same gun as a mossberg model 353. this may help find parts easier.
You can typically find clips for the Revelation 22 R107A at gun stores, online firearm retailers, or directly from the manufacturer's website. It's important to ensure that the clip is compatible with your specific model for proper functioning.
Try e-gunparts.com WHERE ARE YOU BASED? I HAPPEN TO HAVE ONE.