What is arthritis? Arthritis is a general term for a group of more than 100 diseases. The word arthritis means joint inflammation. Arthritis involves inflammation (swelling) in and around the body's joints. Pain, stiffness, and swelling can result from inflammation.
VLTOR weapon systems was founded in 2002 by Michael Mallinen in Coeur d'Alene, Idaho. With the release of the original VLTOR Modstock the company quickly became successful in the AR parts industry. In 2004 VLTOR was bought out by a precision sheetmetal and CNC machining company called Abrams Airborne Manufacturing, Inc.
Established in 1922 to serve the coal mining industry, it was not until 1972 that family owned Jennmar began manufacturing systems designed to support the roofs of tunnels and mines. Frank Calandra Sr. founded the business, but it was his son Frank Jr. who started the mine roof support systems business.