Watch: SIG Sauer Romeo4S Reflex Sight

SIG Sauer updated its Romeo4 line with the new Romeo4S model, which features a number of notable improvements. The 4S allows users to switch between four different reticle choices with two buttons located on the left side of the optic. The 4S also includes a battery that is rated for 50,000 hours of use, but an included solar cell can increase battery life up to 100,000 hours. SIG also improved the mount included with the optic, ensuring a sturdier base. Watch our video to learn more.