The purpose of the laser sight is to provide a visual line that can vaguely represent the projectile motion a bullet will be traveling. To put it bluntly, it gives the shooter an exact idea of where the bullet will land. Laser sights also have a long range, which is why it is often used in conjunction with a scope. This way, one can position himself relatively far from his target and still be able to hit his desired target. Such accuracy and stealth will not only save precious ammunition, but can also save lives. What do you think about this, please share...