Back-Up Iron Sights (BUIS) are a standard item found on every serious fighting rifle. Although red dot sights have become an immensely popular choice for a primary optic, iron sights are still a vital component of any rifle. This is because there are certain advantages that open sights offer that red dot sights fundamentally cannot. Open sights are generally thought of as more reliable then red dots, as they do not have to rely on batteries and do not have to maintain clear glass.
These Back-Up sights from ARMS Inc are a great, low price addition to your rifle. This front and rear sight set features steel aperture for ensured durability. The sights are primarily composed of impact resistant, metal reinforced polymer, which allows them to have a low price.
When in the fully erect positions, there sights maintain a sight rearward cant. This can ensures that if the rifle is dropped, the sights will fold to the correct direction. This helps the sights to maintain their zero in such a situation and ensures a long service life.
Due to the polymer construction, these sights are not rated for use on a Picatinny railed gas block.
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