APFSDS-T Shell

The 120mm M829 Armor Piercing, Fin Stabilized, Discarding Sabot-Tracer(APFSDS-T), cartridge is a US developed kinetic energy (KE) armor defeating round. It consists of a fin stabilized subprojectile with a six bladed aluminum fin, a tracer assembly attached to the rear of the fin and a depleted uranium (DU) penetrator with a ballistic tip to reduce drag. The propulsion system uses an obturating case base with combustible wall. This growth potential round features a modern technology high length to diameter (L/D), depleted uranium penetrator, and lightweight sabot. The cartridge weight is 41.1 lbs.

Battlefield 3
Other than it's inclusion, nothing is known about it this time. though judging by the name, it might be possible to change the type of ammunition for vehicles.