This article, XM-X3 Crossbone Gundam X-three (Alpha), is property of Wing Zero Alpha. XM-X3 Crossbone Gundam X-three Product Data Manufacturer Undertaking X Model Number XM-X3 Unit Type Prototype Close Combat Cell Suit Launched September 19, GC 379 Operators Recognized Pilots - Tobia Arronax Technical Specifications Top 18.5 meters Weight