SIG Sauer P556 Pistol

SIG Sauer P556 Pistol right side

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Summary: The description, specs, pricing, photo and user ratings for SIG Sauer’s P556 Pistol.

Manufacturer’s Description

The SIG Sauer P556 Pistol is a semiauto pistol built on a steel receiver and chambered in 5.56mm. Other features include:

  •  A 10″ button rifled barrel with a twist rate of 1 in 7″;

    The P556 Pistol from the right.
    The P556 Pistol from the right.
  • an A2-type flash suppressor with a standard .5 x 28 TPI thread pattern to ensure compatibility with aftermarket accessories;
  • a polymer forend;
  • an optional flip-up front combat sight adjustable for windage;
  • an optional flip-up rear sight adjustable for elevation;
  • a Nitron finish on the receiver;
  • a top picatinny rail with a SIG Sauer Mini Red Dot sight that works in concert with the optional front combat sight;
  • a trigger housing machined from an aircraft grade aluminum alloy forging with a hard-coat anodized finish;
  • a two-stage trigger;
  • an ambidextrous safety; and
  • one 30-round magazine or a state-compliant 10-round magazine. (Note: The P556 is compatible with M16/AR-15 type magazines.)

The Specs

Caliber Capacity BBL OAL Width Height Weight
5.56mm 10+1, 30+1 10″ 20.5″ n/a n/a 6.3 lbs. w/out magazine

MSRP: $1,207

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