The ERA-TAC SWK Angle Cosine Indicator is a professional-grade ballistic compensation tool designed for precision shooters and long-range applications. Engineered by Recknagel in Germany, this compact accessory helps calculate the correct ballistic compensation for uphill and downhill shots by displaying the cosine correction factor directly on the indicator. The integrated bubble level additionally helps prevent canting errors for maximum shooting accuracy.
Designed for seamless integration with the ERA-TAC® UNIVERSAL interface, the SWK can be mounted without changing the position of the riflescope. Its optimized placement ensures excellent readability, even when using optics with a left-side illumination control. The lateral bubble level keeps the elevation turret fully visible during operation.
Manufactured from high-strength materials to strict Mil-Spec standards, the SWK offers exceptional durability, corrosion resistance, and reliable performance in demanding tactical and hunting environments. Waterproof construction and robust engineering make it a dependable companion for professional marksmen, law enforcement, and long-range sport shooters.