The 41PX has launched the Arctic No. 1 as the successor to the Antarctic series, priced at ¥54,800 including tax. This model features a 6.5-inch M-LOK handguard and a lightened receiver, resulting in a total weight of 2.0kg. Despite its lightweight profile, the full-metal construction maintains structural rigidity. The exterior is finished in Tactical Gray and includes a custom side plate designed by Osumi, which depicts a polar bear and the North Star.