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Smith & Wesson M&P Lasers

A laser sight is a small, usually visible-light laser placed on a handgun or rifle aligned to emit a beam parallel to the barrel. Since a laser beam typically has low divergence, the laser light appears as a small spot even at long distances; the user simply places the spot on the desired target and the barrel of the gun is aligned. Recent studies (2001) have shown that laser sight has become an effective deterring tool for law enforcement. Criminals are more likely to surrender without resistance when they find a red laser dot on their chest. Modern laser sights are so small that they can be installed below the barrel as part of the gun, instead of being a separate attachment. Some laser sights, such as those made by LaserMax, are integrated into a unit that replaces a pistol's guide rod, thus adding no bulk to the gun. Others, like Streamlights new TLR series, are built into a light that attaches to a rail on the frame of the gun.