SG550
The SG550, also known as the Stgw 90 or PE 57, is a selective-fire rifle developed in Switzerland by the Swiss Arms AG company. It entered service with the Swiss Armed Forces in 1990, replacing the SIG SG 510. The SG550 is a gas-operated rifle chambered in 5.56x45mm NATO. It features a rotating bolt and a stamped steel receiver.
The rifle is known for its modular design, allowing for various attachments and configurations. It typically
While primarily used by Switzerland, the SG550 and its variants have also seen export to several other