The Glock Sport Shooting Foundation holds a number of matches throughout the US – by my count, 47 in 2013. If you won your category in any of those matches, you get invited to a special match, held at the Glock Annual Shoot at the South River Gun Club in Conyers, Georgia, called the Gunny Challenge. This event is hosted by Glock spokesmarine R. Lee Ermey, and is a shoot-off for the coveted Gunny Challenge Cup.
This year, the Gunny Challenge will be co-hosted by actor Adam Baldwin, who appeared in Full Metal Jacket, Independence Day, and several other movies and television shows. He may be best known as Jayne Cobb from Firefly.
Here is Glock’s official promotional banner. Personally I like mine better.