SIG SG 540
Videos
The SG 540 is a 5.56×45mm NATO assault rifle developed in the early 1970s by Schweizerische Industrie Gesellschaft of Neuhausen, Switzerland as a private venture primarily destined for export markets
SG 543 carbine with stock extended.
SG 540-1M upgraded by FAMAE in Chile.
SG 542 Made by FAMAE for the Canadian civilian market
Ecuadorian Army soldiers equipped with the SG 542, circa 2002.
SIG SG 550
Videos
The SIG SG 550 is an assault rifle manufactured by SIG Sauer AG in Switzerland. "SG" is an abbreviation for Sturmgewehr. The SG 550 was co-developed by SIG Sauer AG and the Italian firearm manufacture
SIG SG 540
…and the reduced barrel cannot be used to fire rifle grenades. The SG 540 served as the basis for the SG 541 prototype, which would later become the SG 550 that entered service with the Swiss Armed Forces as the Stgw 90 (Sturmgewehr 90). Additionally, two semi-automatic variants were manufactured by MANURHIN…
SIG SG 550 adopted as the standard service rifle of the Swiss Army, designated as the Stgw 90
The C42 by Waffenfabrik Bern, 6.45mm Rifle version
SG 550 disassembled into its main constituent groups
A close-up look on the integrated adjustable gas regulator on the gas block, the front sight with a flip-up night sight post, and the bayonet lug attaches on the flash suppressor