![]() ![]() ![]() Iron sights are typically composed of two component sights, formed by metal blades: a rear sight mounted perpendicular to the line of sight and consisting of some form of notch (open sight) or aperture (closed sight) and a front sight that is a post, bead, or ring. Iron sights are a system of shaped alignment markers (usually metal) used as a sighting device to assist in the aiming of a device such as a firearm, crossbow, or telescope, and exclude the use of optics as in telescopic sights or reflector (reflex) sights. The annular shroud around the front post sight is aligned with the rear peep sight to ensure the weapon is properly trained. Sight picture through iron sights of an H&K MP5 submachine gun.
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