SIG556® No other semi-automatic rifle has captured the imagination of the shooting public like the SG 550 series rifle. For years this legendary Swiss made rifle has been restricted to law enforcement and military sales where it has continuously built on its reputation for outstanding performance, accuracy and durability. SIG SAUER® offers the U.S. produced version as the SIG556, which is available to the general consumer and law enforcement markets. The SIG556 features the same high-performance two position adjustable gas piston operating rod system engineered by SIG’s sister company Swiss Arms and marries it to a trigger housing that not only cuts the rifle’s weight by a pound but is designed to accept standard AR magazines.
The SIG556® Classic SWAT continues the on-going evolution of the Classic model. It features an aluminum quad-rail hand guard that is ideally suited for mounting tactical accessories. The stock is a hinged folding Swiss-style that is able to collapse for ease of transportation or use in tight quarters. This feature is made possible by a new stock interface into the trigger casing. The adjustable stock snaps and securely locks into a folded position with a length-of-pull that can be preset by the user. Obtaining a sight picture with the SIG556 SWAT model now takes place using a new rear rotary diopter sight, utilizing aperture calibrations from close quarter ranges out to 100m, 200m, and 300m.
SIG 556 Rifle Wins NRA Tactical Gun of the Year
Few semi-automatic rifles have captured the imagination of the shooting public like the SG 550 series. For years this legendary Swiss-made rifle has been restricted to law enforcement and military sales, where it has acquired a reputation for reliability, durability and accuracy. Now, SIG Sauer has developed a U.S. made version called the SIG 556 ... .” So stated Shooting Editor Glenn Gilbert in “Like a Swiss Watch” (December 2007, p. 46).
Both 556 SWAT and full-length versions feature the quality shooters have come to expect from SIG, including steel Picatinny rails fixed to the tops of their receivers and military-grade cold-hammer-forged barrels. But these are fully updated designs. Significant changes have been made to the lower receiver and the stock. The cast aluminum lower receiver retains the ambidextrous safety lever of the original 550, but the magazine well has been modified to take commercial and surplus AR-15/M16-style magazines. Further, given the crisp break and limited overtravel of its trigger, the SIG 556’s accuracy was commendable.
“The bottom line, simply stated,” wrote Gilbert, “is that the SIG 556 is an exceptionally accurate and reliable semi-automatic rifle whose performance is more than enough to justify its existence.” That shared sentiment among staffers resulted in the SIG Sauer 556 being named the first-ever American Rifleman Tactical Gun of the Year.
Item Number SIG556302
Caliber 5.56 x .45mm NATO
Overall Length 37.8 in
Barrel Length 16 in
Rifling 1 in 7 in
Number of grooves 6
Weight w/out Mag 8.3 lbs
Mag Capacity 30 Rounds
Accessory Rail Yes
Options Rotary Diopter Sight
MSRP $1,324.00
CA Compliant No
MA Compliant No