P556 SWAT features a 10 button rifled 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, rear for elevation. The receiver is made of high strength steel with a durable wear-resistant Nitron® finish. The Picatinny rail features a Sig Sauer Mini Red Dot sight that works in concert with the optional hooded front 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 P556 SWAT features a aircraft aluminum quad-rail designed for mounting accessories. The P556 SWAT comes equipped with a smooth two-stage trigger, ambidextrous safety and is designed to accept standard AR magazines.
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