Very helpful on pocket semiautos and snubnose .38 revolvers. Not as helpful on guns like a Glock 26 or larger.
I do keep a Crimson Trace laser on my bedside pistol in case I need to use it without my glasses.
All of my lasers are red. They are very helpful outdoors in low light and at all times indoors. They are worthless outside during the day.
Although holster options are limiting, good pocket holsters that accommodate the laser are readily available for many common pocket guns.
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