AR-15 Sights

There are three main types of sights available for your AR-15, standard sights, night sights, and laser sights. When choosing a sight, you'll certainly want to evaluate your purpose. Are you going to be using it mostly during the daylight hours? Are you hunting large animals by dusk? Are you using it for target practice primarily? Each of these factors will play a part in determining the right sight for your needs.
AR-15 Night Sights	Night sights are sights that illuminate at night to help you dramatically improve your sight in all lighting conditions and increase your sight acquisition speed.  There are several different types of night sights.  The most popular being Tritium night sights. Tritium night sights are sights that contain a colored lamp filled with pressurized tritium gas and are available in a variety of colors.  The most popular colors are green, orange and yellow, but each manufacturer is different. These lamps can glow brightly at night for up to 12 years.  Night sights are great for shooting at night, in the woods, or anywhere it may be dark or poorly lit.  Having a glowing sight allows you to see your sight at night or in the dark.
A laser sight is a device that shoots a laser at a your target.  While most often used by the military and law enforcement personel, competitive shooters and firearm enthusiasts in general are starting to enjoy the eas of shooting with a laser sight. Basically, the laser sight is a visible laser light that allows the shooter to see where the bullet will hit. It is located (or structured to fit) above the body of the small arm at a precise angle facing down, so that the laser will point directly at the spot where the bullet will most likely hit. However, as with all devices, the laser is often slightly off, although this difference is highly negligible. Most of these laser sights use what is known as a red laser diode. Because a laser beam has a low divergence, the beam itself will be visible as a small spot even at very long distances. Thus, this red laser would be visible. Some use an infrared diode to shoot a beam (or a dot) that is invisible to a naked human eye; it can only be seen with night vision enabled devices