The Narrative Gundam equipped with a backpack containing a pair of wire-guided assault units. The wire-guided assault units are connected to the backpack via cables and are controlled through them. However, once the Narrative's NT-D System activates, the assaults units function as wireless remote weaponry. A small shield with built-in missiles are also mounted on both arms. The B-Packs has few beam weaponry as it is designed for combat inside space colonies.
The Narrative Gundam B-Packs was deployed alongside the Shezarr Unit after tracking the RX-0 Unicorn Gundam 03 Phenex to the Side 6's Metis colony, where they unexpectedly encountered a secret Republic of Zeon team that were masquerading as the Neo Zeon remnants, the Sleeves. The Narrative Gundam B-Packs then fought the enemy's MSN-06S-2 Sinanju Stein, whose pilot, Zoltan Akkanen, caused multiple damages to the colony during the fight.