The first standard issue weapon of the Guardia Nacional (GN) infantry companies at the mid-1920s was the Krag–Jørgensen US M1896/98 .30-40 (7.62 mm) bolt-action rifle, soon superseded by the Springfield US M1903 .30-06 (7.62×63mm). The squad weapon was the Browning Automatic Rifle (BAR) M1918A2 US .30-06 (7.62×63mm) light machine gun – the GN also appears to have received the American-made version of the famed World War I British-made Lewis gun .303 (7.7mm), the Savage Model 1917 LMG chambered for the US .30-06 (7.62×63mm) cartridge –, with the company weapons being the Colt-Browning M1895 "potato digger" .30-06 medium machine gun and the US M1917A1 .30-06 Browning water-cooled medium machine gun. Officers and NCOs received the Thompson M1928A1 US .45 caliber (11.4mm) submachine gun, as well as the Colt M1911A1 .45 caliber (11.4mm) semi-automatic pistol as personal sidearm. A small number of ZB vz. 30 light machine guns were acquired from Czechoslovakia in 1937 for evaluation, but they were never adopted as standard weapons by the GN.