Chuck Schumer wants the feds to investigate how John Houser was able to legally buy a handgun last year. (Photo: U.S. Sen. Charles Schumer is asking federal authorities to open a full investigation into how a movie theater murderer with a checkered past was able to legally purchase his gun.John Russ …

This is just a tiny portion of the firearms on display at the J.M. Davis Arms and Historical Museum.Whether you are an avid gun collector or just appreciate the history, these gun collections will blow your mind. You may not be able to visit all the collections mentioned on this list, but if you’re …