Try e-gunparts.com
Information on 45 caliber guns is available on websites that sell guns, for example Cabelas', and also websites of arms organizations such as the National Rifle Association. Information is also available at the website The Gun Zone.
Information about impact guns can be obtained by visiting any local or retail fire arms dealer. The sales representatives are knowledgeable in the different types of these items and can answer any questions about them.
Most likely a store brand.
Eastern Arms Company was a trade name used by Sears Roebuck. The guns were manufactured by Meriden Arms, Iver Johnson, Stevens, Savage, and probably others.
Eastern Arms was a trade name used by Sears Roebuck in the first half of the 20th century. The guns were made by a variety of manufacturers in the US and Belgium.
There are many gun websites where this is available. You can also go to gun auctions and flea markets where collectors sell guns.
This name was used by Montgomery Ward on guns manufactured by Iver Johnson Arms and Cycle Works and J. Stevens Arms Company.
What kind of information?
guns
One would be able to find out more information about m4 airsoft guns online on Amazon. Two other sites that have some information about m4 airsoft guns are wikiHow and HobbyTron.
Volunteer and Volunteer Arms Co were trade names held by Belknap Hardware and used on guns made by Crescent Firearms Co, Crescent-Davis Arms Corp, Davis=Warner Arms Corp, Iver Johnson Arms & Cycle, Harrington & Richardson Arms Co, J. Stevens Arms & Tool Co, and possibly other manufacturers.
You can find information on when these guns were manufactured on OldGuns.net.