Personal defense weapon

PDW stands for personal defense weapon. PDWs fire armor piercing bullets but are small like submachine guns.

Battlefield 3
Battlefield 3 features PDWs as all kit weapons. The following PDWs are available:
 * PP2000, unlocked at rank 7
 * UMP-45, unlocked at rank 16
 * PDW-R, unlocked at rank 32
 * P90, unlocked at rank 40
 * MP7, unlocked at rank 45