The SIG SAUER® Rotary Diopter Sight System for SIG556® Rifles

Published Date: 2/11/2009

EXETER, NH – SIG SAUER, Inc., the leading manufacturer of commercial, law enforcement, and military firearms now has a Rotary Diopter Sight System optimized for the SIG556 rifle. This new sight system provided four site stations for accurate engagement at varying distances including CQB, 100m, 200m, and 300m, all with tool-less windage and elevation adjustment. Designed to work in conjunction with the hooded front sight, the Rotary Diopter Sight System attaches to the receiver’s M1913 rail. Made of durable steel construction the Rotary Diopter Sight System retrofits all existing SIG556 rifles. The front and rear sight co-witness with the SIG SAUER Mini Red Dot Sight and are optimized for M855 and M193 ammunition. The Rotary Diopter Sight System features 0.5 MOA (1/2") click adjustments and 34" windage/25" elevation adjustment range at 100 meters.

The SIG SAUER Rotary Diopter Sight System is now standard on the SIG556 SWAT and Classic SWAT rifle models. This feature now provides serious shooters with a high quality indexed set of iron sights with CQB capabilities. MSRP is $259.00. For more information on the SIG SAUER Rotary Diopter Sight System or any of the SIG SAUER products, log on to