Sig Sauer SIG556 for Sale
Founded: 1976
HQ: Switzerland and Germany
The Sig Sauer SIG556 is a semi-automatic rifle using a gas-operated long-stroke piston and rotating bolt, in signature 5.56×45mm NATO, that accepts AR-15/STANAG magazines. Its hallmark is the rubber-sealed charging handle slot of the SIG 55x system. On FirearmLand, Sig Sauer SIG556 listings most often appear in 5.56 NATO and 7.62x39mm.
Sig Sauer SIG556 Auctions
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