One of the original 1982 set of G.I. Joe 3 3/4" action figures. He had protective red padding like the Flash figure and was unarmed. He was sold with the HAL (Heavy Artillery Laser]. In 1983, a Grand Slam with silver padding was sold with the JUMP (Jet Mobile Propulsion Unit) jet pack. (The previous year, the JUMP was sold with no action figure included.)

1982 filecard:

LASER ARTILLERY SOLDIER

Code Name: GRAND SLAM

File Name: Barney, James J. SN: RA379541044
Primary Military Specialty: Artillery
Secondary Military Specialty: Electronics Engineer Birthplace: Chippewa Falls, Wisconsin Grade: E-5
Grand Slam received initial training in conventional artillery and served with a 155mm battery. Graduated: Special Weapons School (Top of Class). Specialized Education: Artillery School; Advanced Tech School, Qualified Expert: M-16; M-1911A1; "HAL" Heavy Artillery Laser.
"He’s soft-spoken and calm – just a bit shy. Intelligent. Loves to read escapist fantasy (science fiction and comic books)."

Comic book appearances:
* G.I. JOE: #1, 3, 4, 6, 8, 11, 17, 19, 59, 82, 130

Filecards and information from http://www.yojoe.com