Megami Device B1R-M CHASSIS KIT SKIN COLOR E is a highly modular 1/1 scale plastic model kit designed for flexible customization and display. The kit includes runners for both concept color and full-body skin color E, plus an unpainted face with blank movable eyes compatible with decals and a face with printed movable eyes. The chest, abdomen, waist, and toe sections come in two detail levels, allowing modelers to choose how sharp or restrained the detailing looks. The helmet can show or obscure the model's expression, and the included shoulder blades preserve compatibility with older Megami Device chests. A back armament hanger with a 3mm connector, an eye-adjustment tool, and a stand enable dynamic, one-legged poses and easy display.

Within the Megami Device universe, the B1R-M chassis emerges as a new original base model designed by Masaki Apsy and Amaai to blend Bishoujo aesthetics with heavy artillery and armor. The B1R-M is a modern remake of Block1's standard body, reborn as a mobile chassis kit with improved mobility and user-friendly assembly while maintaining compatibility with past characters. Its face parts by Amaai feature printed, movable eyes—a first for the line—and can be swapped onto Block2's standard faces and hair from models like the Buster Dolls. The kit offers two configurations—the concept color and the full-body skin color E—so creators can tailor palettes and weapon systems, building stories from battlefield scrapes to experimental clean-room displays. This chassis serves as a flexible platform for future Megami Device collaborations, inviting modelers to mix parts across titles and stage complex dioramas.