The Gundam Tertium is a Gunpla appearing in Gundam Build Divers Re:RISE and is based on the MSF-007 Gundam Mk-III.
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P-Bandai RG 1/144 Crossbone Gundam X2 REVIEW
The Real Grade Crossbone Gundam returns as its second variant, X2! The molds are shared with its previous kit with newly molded parts, from weapons and v-fins.