Crimson Trace Corp. (CTC) is one of the pioneers in affordable lasers for shooters. CTC currently offers the widest selection of laser stocks for the J-frame snub sized revolvers. These include the LG-105, -205, -305 the -405. Material used to enclose the laser emitter and electronics include; polymer shells (LG-105 and -205,) rubber overmolds (LG-305) and occasionally a combining the two (LG-405.)  CTC’s laser emitter is located on the right side stock panel, below and to the rear of the revolver’s cylinder.  Because the laser emitter is positioned under the cylinder holding the trigger finger off the trigger and on the revolver’s frame will block the laser’s beam. This can be used as a positive finger-off trigger reinforcement device.  The activation switch is located on that portion of the stocks that cover the revolver’s front strap, either centered or slightly off center to the frame depending on the model. The laser can be turned on with mild finger pressure or turned off with a slight reduction in that pressure. This style of “dead man’s switch” assures that activation under stress is reflexive.  All the CTC laser models’ elevation and windage controls are located adjacent to the emitter above and to the side of the emitter respectively. Point of aim can be adjusted via a thin Allen wrench which is supplied with the stocks.  With the laser positioned about an inch to the right and below the snub’s bore axis some shooters wonder about the parallax between the barrel, the line of sight and the laser’s beam. If the shooter matches the laser’s dot with the iron sights’ point of impact at a reasonable distance, perhaps fifteen yards, the shooter can then fire at targets from point blank to thirty yards with a theoretical maximum shot spread of two-inches.  Acknowledging the nature and speed of the typical violence assault a theoretical two-inch spread within a zero-to-thirty yards range seems like a very reasonable working range. It should be noted that the laser could be set to match the iron sights point of impact well beyond fifteen yards. i.e. Why not set the laser to the same twenty five yard minimum group standard noted above? My experience indicates that, for many shooters, trying to quickly locate the laser dot in good light out beyond fifteen yards becomes problematic.