The perfect j-frame grip - Crimson Trace Laser Grip with Rubber Over Mold for Smith & Wesson J-Frame Pistol

This grip works well for me, whether on a 340PD in .357 Magnum, or a 442 in 38 Special. I have big hands (XXL glove), so not all the fingers get a spot on the grip, but it works, and the shortness of the grip keeps it concealable. The added rubber in the backstrap area helps a lot when firing magnum and +P loads. The button pressure switch on the front of the grip, used for turning the laser on and off, is easy and intuitive to use. CT does make other grips which are not so intuitive, but not the LC-405. The grip is easy to adjust for windage and elevation and holds its zero well. Battery life is exceptional. As for longevity - I own one that is going on 15 or so years old. I think it was called the CT-405 back then. Still functions perfectly and the rubber is still pliable, still feels good. I really have nothing bad to say about this grip.