In instruction set #2, there is a recommended activity that requires you to collect manufacturer's catalogs. It's good reference material, so I started building a binder.
Of all the ones listed, only Remington and Colt didn't have links to order hard-copy catalogs. Colt gives a number to call to ask for a catalog, which I will be doing tomorrow. Remington, however, replied back to me with this email (partial):
Dear Sir,
We are no longer sending out 2014 Catalogs. However, we have the full catalog available for viewing on the Remington Website.
So... if you want a Remington catalog... you better keep up with technology. The days of hard copy in Remingtonland are over.
All the best,
Glenn