SIG SG 510 [SEP] service entry
SG 510-1 was adopted for Swiss military service in 1957 and was, in 1990, replaced by the lighter SIG SG 550, although some reservists used it for several years longer.
Design details.
The SG 510 is derived from the AM55 used during the 1950s. It is a selective fire rifle that employs a roller-delayed blowback operating system. Unusually, it was fitted with a shiny stainless steel bayonet.
Design details Features.
The weapon is mainly made of pressed sheet-metal components to ease
SIG SG 510
The SIG SG 510 or Sturmgewehr 57 is a selective fire battle rifle manufactured by Schweizerische Industrie Gesellschaft (now SAN Swiss Arms) of Switzerland. It uses a roller-delayed blowback system similar to the H&K G3 and CETME rifles.
The SIG SG 510-1 entered service in the Swiss Army with the designation Fass 57 (French/Italian, for Fusil d'Assault 57"/Fucile d' Assalto 57") or Stgw 57 (German for "Sturm Gewehr 57").
The Sturmgewehr 57/SIG