The M-1 Bipower is a unique weapon, combining a 9-shot, .55 caliber revolver with a 23-shot, 22mm auto. The revolver can use any of the special-purpose loads developed for the CA-MAP, while the 22mm auto can deliver fast, accurate firepower. This worn-out version has seen better days.

The M-1 Bipower is a unique weapon, combining a 9-shot, .55 caliber revolver with a 23-shot, 22mm auto. The revolver can use any of the special-purpose loads developed for the CA-MAP, while the 22mm auto can deliver fast, accurate firepower. This worn-out version has seen better days.