The M8 “Buford” Armored Gun System
It was designed to replace the aging, and troubled, Sheridan as the air droppable light tank for the 82nd Airborne Division. It got through design and testing. It got formally approved for purchase, type classified and named after John Buford of Gettysburg fame. Then they cut it for budget reasons. The Sheridan instead got “replaced” by HMMWVs mounting TOW anti-tank missiles.
It may still be fielded though. It came up in the initial briefing slides I saw laying out the requirements and possible off the shelf systems for what became the Stryker Brigades. The M8 only fit the light tank role in that Brigade organization and one of the goals was maximizing common automotive systems. Unsurprisingly it wasn’t picked. BAE has put an upgraded M8 into competition with two other systems for the Mobile Protected Firepower procurement program. The program is very similar to what the Buford was designed for. A decision is expected early next year. Buford may get his namesake.