Stingray

By the early 1980s, the Army concluded a more powerful weapon than the 75 mm gun required by the HIMAG program was necessary for the Army's light forces. Characteristics were outlined and revised, becoming known as the armored gun system (AGS). The search for a new weapon considered a 105 mm gun to be the most ideal candidate. The development of such a new AGS was designated as the XM4, and several potential candidates were put forth.

The Cadillac Gage Company had been developing the Stingray light tank for the export market since as early as January 1983, but quickly realized it met the requirements for the XM4 program. It had a welded turret with a conventional crew arrangement. The gun used was a low-recoil force (LRF) variant of the Royal Ordnance 105 mm L7. The vehicle carried a total of 36 rounds and could reach a top speed of 70 km/h on level ground.

In October 1986 the Stingray prototype was shipped to Thailand for trials and was later demonstrated in Malaysia. While the Stingray wouldn't enter service in the United States, in 1987, Thailand showed interest in the vehicle and a production batch of 106 vehicles were ordered. After the shipment was completed in 1980, the Stingray was no longer marketed.

While the Stingray is technically a light tank, I think it would work in this branch of tank destroyers. It's fairly mobile, lightweight, lightly armored, and carries with it a damaging gun. Turret traverse, aim time, and on-the-move dispersion may be made poor in order to help balance the tank. Regardless, this should make for a fine end to this tank destroyer branch.



Guns: Royal Ordnance 105 mm L7A3 LRF

Engines: Allison 8V-92TA 399 (535 hp)

Turrets (Turret Armor (mm)): Stingray (25/??/??)

Suspensions/Alternate Hulls, Total Weight (metric tons): Stingray (22.6)

Hull Armor (mm): 25/??/??

Top Speed: 70 km/h

Crew: 4 (Driver; Gunner; Loader; Commander/Radio)

Parent: AGS-M551

Sources:

Hunnicutt, R. P. Sheridan, 2015. 

https://army-guide.com/eng/product928.html 

https://www.globalsecurity.org/military/systems/ground/stingray-lt-specs.htm