Manufacturers and makers on the tour.
Factories, workshops and companies the Gun Show Loophole Tour has visited or passed through.

Browning
Based in Morgan, Utah. Founded in 1878 in Ogden, Utah by John M. Browning and his brother Matthew. Known for designs like the M1911 and the Browning machine guns. The tour visited the Browning museum in Ogden and the Jonathan Browning home and workshop in Nauvoo, Illinois, where John’s father worked as a gunsmith.

Winchester
Founded in 1866 in New Haven, Connecticut. Known for the lever-action rifle. The Cody Firearms Museum in Wyoming is built around the Winchester factory collection, a 2018 tour stop.

Brownells
Based in Grinnell, Iowa. Founded in 1939 by Bob Brownell in Montezuma, Iowa. Known for gunsmithing tools, parts and supplies. A 2018 tour stop.

The Ring of Fire makers
Southern California makers tied to George Jennings, who started Raven Arms in 1970. Jennings Firearms followed in 1978, Lorcin in 1989, and Phoenix Arms in 1992 after a 1991 fire at the Raven plant. Phoenix Arms is still in production. The tour took a factory tour in 2016.

Bannerman
Francis Bannerman VI ran one of the largest military surplus businesses in the world and built his arsenal castle on Pollepel Island in the Hudson River in the early 1900s. A 1920 explosion and a 1969 fire left it in ruins. The 2017 tour went to see it.

Rock Island Auction
Rock Island, Illinois. One of the largest firearm auction houses, toured on the 2018 GRPC run.
A state-by-state list of firearm makers is on Minuteman University.com.