What You Should Know About Firearms This Year

Two Types of Iron Sights for Better Accuracy

Optics in firearms can offer you different benefits such as extended range, low-light visibility and also on the ease of target acquisition. Even the military has switched to optics to be used in combat situations.

It is really important to remember that such high tech replacements for dependable old iron sights can be disabled on a certain way. Without proper backup, damaged optics could render the weapon useless for accurate shooting.

The BUIS or Back Up Iron Sight can in fact give you critical redundancy in the process of setting up your AR. It could add weight, but could give you the ability in getting targets even after the primary sight goes down. What you will learn below are some things to consider in the selection for a backup iron sight.
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Iron sights are actually available in different configurations based on the height of the sights. The basic to this is that you should have the rear and front sight to have the same height if you want to really hit the target.
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Where this comes into important is to where you mount the front sight. Most backup iron sights are available in 2 options which are the gas block height and same-plane height.

On the gas block BUIS configuration, the front sight post is about 1/4 ” higher than the rear sight aperture so that it could make up for the reason that the front sight is mounted 1/4 ” lower compared to the upper receiver to where the rear sight is being mounted. It is very important to remember that the gas block sights are just for mounting on gas blocks that are lower than its upper receiver. Some gas blocks comes with the same height as that of the receiver where you would want the same-plane sight.

Same-plane sights are actually made in order for the front sight post would be with the same height as the rear aperture if the sights are put on a flat surface. This actually means that for these sights, the front sight should be mounted somewhere with the same height as its upper receiver. In most cases, people will mount the front sight on a free float handguard with a rail present on top.

The overall AR-15 setup is going to help determine whether you will need the folding or fixed BUIS. The fixed iron sights has the advantage to where it comes with no moving parts where it makes it nearly indestructible. Another thing is that it is always ready and there’s no need to mess with them.

If you are ever not using them as your main targeting system, you should consider using the fixed sights, but for backup purposes, the folding types are the ones that’s best.