This is by far the best laser for the M&P line of pistols. The laser comes on just by gripping the gun, which is useful in stressful situations. Unlike other lasers, the Crimson Trace aligns the laser close to the bore so there isn't much offset at close distances. In terms of size, the Crimson Trace grip feels like the M&P medium backstrap.
Pros: Instinctive activation
This review was written in the old system and had content requirements that are different than reviews written today.