The standard m/45 is a fully-automatic-only weapon without any option for semi-automatic fire. It weighs 3.3 kg (7.3 lbs.) unloaded, and 4.2 kg (9.25 lbs.) loaded with a 36-round box magazine. It is 808 mm (31.8 in.) long with the stock extended, and 550 mm (21.7 in.) long with the stock folded. The m/45 is an open bolt design with a fixed firing pin. The relatively slow cyclic rate of fire (550–600 rds/min.) and low recoil of the bolt-mechanism actuation (straight blowback) makes it easy to control during full automatic fire. Single shots are also easy to achieve (with very little training) by letting go of the trigger before another round is cycled. The m/45 is fairly accurate up to 200 meters.