Type 03 BR assault rifle - 5.56x45mmm NATO.
The Type 03 BR Rifle is a fictional assault rifle based on the FAMAS bullpup AEG. It's known in Japanese as 03式 BR小銃.
According to Battle Royale II, it uses 5.56x45 NATO caliber 30 round magazines. It can also be equipped with an underbarrel 40mm grenade launcher.
The (Battle Royale II: Requiem) - Type 03 BR Rifle and variants can be seen in the following films, television series, video games, and anime used by the following actors:
||survivors of Halos Dome City
||"Light Beam/Shining Sign" (E08)