The SIG SG510 is a battle rifle designed and manufactured by Schweizerische Industrie Gesellschaft of Switzerland, chambered for 7.5ร55mm GP 11 cartridge or 7.62ร51mm NATO. It was adopted for Swiss military service in 1957 until early 1990s. The weapon features roller-delayed blowback mechanism, flip-up iron sights and a perforated tubular barrel shroud.