Editor’s Note– TACTICAL-LIFE.COM was just in New Hampshire to test all of Sig’s newest offerings, including this 556 pistol. Check back with us to see video coverage of all the new products Sig is introducing for 2009!!!


SIG556 Pistol features a 10” military grade cold hammer forged barrel, chambered in 5.56mm NATO, with a twist rate of 1 in 7”. The flash suppressor uses a standard .5 x 28 TPI thread pattern, ensuring compatibility with after-market accessories. The optional flip up front combat sight is adjustable for windage and elevation. The receiver is made of high strength steel with a durable wear-resistant Nitron® finish. The Picatinny rail features an SIG SAUER Mini Red Dot sight that works in concert with the optional front combat sight. The trigger housing is machined from an aircraft grade aluminum alloy forging with a hard-coat anodized finish designed to survive extreme conditions. The pistol comes equipped with a smooth two-stage trigger, ambidextrous safety and is designed to accept standard AR magazines. The pistol ships standard with (1) 30-round magazine. The P556 is compatible with M16/AR-15 type magazines.

Caliber 5.56mm NATO (.223 Remington)
Length 21.5″
Barrel Length 10″
No. of Grooves 6
Rifling 1 in 7″
Weight w/o Mag 6 lbs 7oz

For more information on this and other Sig Sauer products, visit

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