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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.
Iron sights are typically composed of two component sights, formed by metal blades: a rear sight mounted perpendicular to the line of sight and a front sight that is a post, bead, or ring. Open sights use a notch of some sort as the rear sight, while aperture sights use some form of a circular hole. Civilian, hunting, and police firearms usually feature open sights, while many military battle rifles employ aperture sights.
The earliest and simplest iron sights are fixed and cannot be easily adjusted. Many iron sights are designed to be adjustable, so that the sights can be adjusted for elevation or windage. On many firearms it is the rear sight that is adjustable.
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.

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  1. FreedomPI

    New 357 Lever Old eyes

    I just found a nice marlin 357 lever action. It has the factory Iron sites, who can suggest sites or ? for 65 year old eyes (I need glasses for reading). Thanks for all the wisdom, you guys are really helpful.
  2. 2

    Back-Up Iron Sights (BUIS)

    This is somewhat dated. Still great reference. > BUIS Reference < Maybe useful as a sticky?
  3. SIG34

    Replica Iron sights?? Or real

    So I’ve spents hundreds outfitting each rifles with real Troy Inc & Knights Armament and finally Magpul iron sights. I decided to see how a replica set of Knights Armament licensed flip up Airsoft iron sights would hold up. I’m actually shocked.. $29.99 they are full aluminum with steel...
  4. gun.deals

    Flip Up Mil Spec Iron Sights Set - $15.99 + Free S/H over $25

    SOUFORCE Premium Tactical Flip Up Mil Spec Iron Sights Front + Rear Sight Mounts Set - $15.99 + Free S/H over $25
  5. ATCclears

    Practical Carbine Accuracy: Off the Bench and In the Field

    Best quote: “If you can’t do it with irons, don’t bother with optics” Practical Carbine Accuracy: Off the Bench and In the Field
  6. old11bravo

    The latest AR pistol creation and dialing in the iron sights

    Finally got some iron sights mounted and took this out last Thursday (my birthday). It was an absolutely beautiful day with a bit of a chilly start, lots of sunshine and the trees in all their magnificent display of fall colors. I had the entire MRC pistol range to myself for over the two hours...
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