The Hasbro toy company produces GI Joe toys. The companies first run of the toys was in 1964. In 2003, GI Joe toys were inducted into the National Toy Hall of Fame.
The toy that is most often linked to Sigma 6 is the "G.I Joe: A Real American Hero" action figure. Sigma 6 is a line of action figures made by the company, Hasbro.
G-I- Joe Sigma 6 - 2005 Sigma 1-5 was released on: USA: 8 October 2005
G-I- Joe Sigma 6 - 2005 Invasion was released on: USA: 16 September 2006
G-I- Joe Sigma 6 - 2005 Giant was released on: USA: 18 November 2006
G-I- Joe Sigma 6 - 2005 Balance was released on: USA: 11 November 2006
G-I- Joe Sigma 6 - 2005 Memory was released on: USA: 4 November 2006
G-I- Joe Sigma 6 - 2005 Race 1-6 was released on: USA: 15 October 2005
G-I- Joe Sigma 6 - 2005 War 1-10 was released on: USA: 18 February 2006
G-I- Joe Sigma 6 - 2005 Vacation 1-8 was released on: USA: 10 December 2005
G-I- Joe Sigma 6 - 2005 Hidden 2-1 was released on: USA: 9 September 2006
G-I- Joe Sigma 6 - 2005 Jungle 1-7 was released on: USA: 3 December 2005