is a five-round shotgun
manufactured by the Brazilian
firm ENARM (Empresa Nacional de Armas). It has a revolver-type
cylinder and could be fired double action only.
Gas blow-by between cylinder and barrel was prevented by means of movable barrel, which was pulled just prior to firing 1.5mm backwards into the corresponding recesses in cylinder. The shotgun utilizes a straight-line configuration (similar to AR-15
) in order to minimize muzzle rise