"For precision applications such as hunting or sniping the iron sights are usually replaced by a telescopic sight. Iron sights may still be fitted alongside other sighting devices (or in the case of some models of optics, incorporated integrally) for back-up usage." -en.wikipedia.org/wiki/Iron_sights
Now you can have both your everyday carry iron sights and your target sights on the same firearm at the same time.
-= COMING SOON =-