The SG 550 is a selective-fire 5.56×45mm NATO assault rifle firing from a closed bolt. It has a gas-actuated piston-driven long-stroke operating system derived from the SIG SG 540 series …

Jul 30, 2022 · Sig decided to modernize the 556 series with the XI series. They went full bore, adding a new stock with a cheek riser for better sight acquisition, a three-position adjustable …

Available in 5.56 NATO, the Classic SWAT features a Swiss-type folding stock, as well as a aluminum quadrail forend that is ideally suited for mounting accessories. The Classic SWAT’s …

May 1, 2012 · Fast forward to 2007 when SIG Sauer, the U.S. arm of the now privately held concern of German and Swiss factories, announced the new SIG 556, a 550-based semi …

Oct 28, 2010 · When SIG Sauer introduced its SIG556 carbine two years ago, many American shooters were excited by the prospect of a U.S.-manufactured, semi-automatic version of …

Comes with alloy Quad Rail tactical foren, the SIG556 Patrol Rifle ships standard with the RDSS (Rotary Diopter Sight System). 5.56mm x 45 NATO (.223 REM) 16 button rifled barrel. A2 …

The Sig Sauer 556 Classic SWAT rifle chambered in 5.56 mm was an attempt at making the Sig Model 550 available to the North American shooting market.

Jul 16, 2009 · In the case of the SIG556, this gas piston is adjustable for two settings. Three high-strength carbon steel components combine to form the upper receiver. These components …

Jun 1, 2012 · Sig Sauer’s lineup now includes the SIG551-A1 and SIG556 chambered in 5.56mm NATO, and the SIG556R in 7.62x39mm. The SIG551-A1 is the rifle most closely patterned …

Sep 21, 2024 · The SIG Sauer 556 Classic SWAT is the perfect blend of AR-15 familiarity and AK-47 toughness, wrapped in Swiss precision, making it a unique and reliable choice for …