Here is a look at the new SIG Sauer ROMEOZero PRO Red Dot Sight that can be mounted on optics ready handguns... "The ROMEOZero-PRO brings the lightweight polymer design of our ROMEOZero line of micro reflex optics to a full-size pistol optic built with a host of premium features. The ROMEOZero-PRO model is compatible with all SIG SAUER ROMEO1 PRO optics-ready pistols.