by Steve » Mon Oct 12, 2009 8:46 pm
Personally, I would have posted this in the Tactical Equipment section. Of course, I would have used the search function first, and that would have shown me that my questions had been asked and answered numerous times already.
Rather than playing the "Are you lazy or stupid?" game, though, I will break the tradition and answer your questions to the best of my ability.
Safety:
Lasers, like many other products, are rated for safety. Class IIIb and lower lasers, typically with 35mW of power, are rated as eyesafe. In practice, this means that it would take at least several minutes of exposure to cause lasting harm. Most laser aiming units you will find are in the 5mW range.
Effectiveness:
Both red and green lasers are readily available. Green lasers tend to be more expensive, but are correspondingly easier to see as well as being brighter and having a longer effective range.
Uses:
Laser aiming modules are great training tools. In CQB, they can reduce target acquisition time and increase first round hit probability. They allow element leaders to identify targets for their team.
Disadvantages:
The source of the beam is very obvious to the target. Sufficient dust or smoke in the air will render the beam visible along the beam path. The beam is zeroed at a fixed distance point along a sharply curving ballistic path. The origin of the beam can generally be seen further than the user can observe the terminus. The terminal end of the beam can give away your presence, so the same light discipline you would observe with any other illumination source must be observed.
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