SIG SG 530

The SIG SG 530 was a prototype Swiss assault rifle developed in the 1960s by Schweizerische Industrie Gesellschaft (SIG) and Fabbrica d'Armi Pietro Beretta to take the then-new M193 ball and M196 tracer 5.56x45mm NATO military rounds. The 530 was only ever manufactured in small numbers, but was the basis for later, more successful projects, like the SG 540 and SG 550 rifles, as well as the Beretta AR-70.