Yes. Gun shop, gun show, want ad, e-gunparts.com
Troy Industries makes a stock set that fits the Ruger 10-22 rifle.
I would start at numrich gun parts corp,then try sarco.
If your rifle is a tube magazine type semi auto, it was made under the Revelation brand for Western auto by Savage, and is known as the Model 80. SOME parts may beavailable from a gunsmith, or sources such as gunpartscorp.com. Depending on the parts needed, the cost may be more than the value of the rifle.
Check with a gunsmith, or find the model number of your rifle, and check on line parts supply houses, like gunpartscorp.com
Jamna Auto Industries was created in 1954.
Jamna Auto Industries's population is 3,000.
Try e-gunparts.com
The Revelation Brand was used by Western Auto for guns made by others, but sold by Western Auto. In the case of your Mdl 104A, this is a Mossberg Model 640 (nice rifle, by the way). Parts may be available thru the website for Havlin Sales, and at gunpartscorp. .
A remanufactured FN-FAL semi-auto rifle using an IMBEL(Brazilian) receiver and Israeli military surplus parts. A very well made & quality rifle.
Try e-gunparts.com
Gun shops, gun shows, want ads, e-gunparts.com
1887. The Mexican Army equipped solders with the Mondragon rifle- a semi or full auto rifle- in 1901.