[Machine Translation] A modified model of the U.S. military prototype armed UGV "MAARS" robot for designated defense schools. The concept is "self-propelled heavy machine gun". The large caliber machine gun has a powerful firepower that can effectively hit even large IXIS, but it is very heavy, so it is not something that the designated defense school students can freely carry. The "Caliber Carrier" is the realization of the desire of the defending students, "It would be great if the heavy machine gun could run by itself...". By adding a sighting sensor, the "Caliber Carrier" can be operated by remote control only. In the future, autonomous combat using AI programs and multi-platform support are being explored. Maho Kushii, a designated defense school student who participated in the test operation, nicknamed it "Strolling Chopper-kun" because of its appearance of running along with the gunner. ( Contents ) / UGV / M2 heavy machine gun ( QCB specification ) / Ammo box / Antenna x 1 set / Controller x 1 / Operation PC x 1 / Case x 1 / Cable x 1 / Propo x 1 / Game PAD x 1 *The kit recommended for use with plastic model glue includes the main UGV and a set of operating equipment. The turret is movable and can be swiveled. Two separate colors are used for the crawler and the main body.