M200 is a fictional T-Doll character from Girls' Frontline, an anthropomorphic military-themed strategy game and its related anime/media franchise. She is a lightweight machine gun T-Doll known for her small stature and energetic, somewhat playful personality. In the series, M200 serves as a combat unit used by the player’s forces and is portrayed as part of the broader cast of weapon-based characters. She is notable for her distinctive design and role as a support fire unit in battle.