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Astra Defense

Sion, Switzerland

WeaponsSoldier Equipment
Founded 1908Prime ContractorSupplies Land Forces, Special Forces, Homeland Security & Police
Profile last updated: July 12, 2026

About

Founded in 1908, Astra Defense is a defense prime contractor based in Sion, Switzerland working in weapons, soldier equipment.

Astra is a firearms manufacturer founded in 1908 in Eibar, Basque Country, by Pedro Unceta and Juan Esperanza. The company moved to Guernica in 1913 and its manufacturing facility is now located in Sion, Switzerland. Astra produces military and law enforcement weapons, including the STG4 MKIII assault rifle family, the MG127 heavy machine gun, the MG762 general purpose machine gun and the SL203 launcher. Its products are used by armies, police forces and special forces. Historically, the company also manufactured handguns and revolvers for government and sport shooting customers.

Location

Sion, Switzerland

Founded

1908

Focus areas

firearmsassault riflesmachine gunslauncherssmall armsSwitzerland

Languages

EN

Products & capabilities

Defense domains

WeaponsSoldier Equipment

Supply-chain role

Prime Contractor

What they offer

Hardware

Products

STG4 MKIII

Assault rifle

Gas-operated, belt-fed or magazine-fed rifle family in calibres including 5.56x45mm NATO, 7.62x39mm and 7.62x35mm .300 Blackout, offered as rifles, carbines, commandos and pistols.

MG127

Heavy machine gun

Heavy machine gun in 12.7x99mm NATO (.50 BMG) calibre with quick-detachable barrel.

MG762

General purpose machine gun

General purpose machine gun in 7.62mm calibre.

SL203

Launcher

Launcher in 12/70 (2.75 inch) calibre.

End users

Land ForcesSpecial ForcesHomeland Security & Police

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