Your lasers shoot straight but your bullets never will
Lasers have been around for a long time and there are plenty of stories out there with credibility that involved Law Enforcement using them on firearms and then removing them because they were a liability. With each accessory you put on a firearm, there is always a chance that it will fail or snag on something or change your perception of the way you are engaging a target. Although laser grips can have their advantages, you have to train to use them properly. If you are looking for that dot to exactly where you want it to be you are wasting time and giving your opponent an opportunity to get his sights on you. I have done enough testing and evaluations with new students to know that the majority of individuals act a certain way when given laser grips, they slow down when engaging targets.
For those of us that have taken Carbine Courses, we know that the AR15 his a very high sighting picture and in a home defense or hostage situation, you better know your point of impact or something catastrophic can occur. Crimson Trace Laser Grips have really picked up for the concealed carry market and they fly out of the door for those carrying pocket guns. The reality about most pocket guns is the sights are never used. Some guns like the Rohrbaugh R9 come with and without sights, why… because at certain ranges and certain calibers you train not to use them. If you using laser grips for carry purposes, you are better off training to use it as a highlighter for low light threats but you must always be aware that your point of impact changes over distances.
