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.
Original maker is Mossberg, Model 810. hoosiergunworks.com has magazines
have good 16ga no clip shoots good model 228
You might have a chance on gunbroker.com
I believe what you hae is a Mossberg model 42
http://www.e-gunparts.com/productschem.asp?chrMasterModel=0840z353&SortBy=DESC
i have one my dad got it in the sixtys i need a clip for it though its a mossberg 353
Vintage gun parts such as the needed magazine for a Model 46A Western Field 22LR can be found at major gun shows or through online specialty companies such as APEX and Numrich.
You dont deserve the gun or magazine if you call a magazine a clip.
Find a good metal shop and provide them them the dimensions.
I also have one of these and I need a clip for it have you found out any info about it?
who made montgomery wards bolt action 20 ga shotgun with a clip.
I believe your rifle was made for Western Auto by OF Mossberg as their Model 640K. Magazines can be ordered at most gun dealers. They are available from Havlin Sales for $27, or Numrich for $32.50, plus shipping.