Well, the gun is expressly DESIGNED for a light to be mounted, and in fact some folks do need pistol mounted lights, SWAT and K9 officers being most notable. Being a night shift guy full time, and a SWAT guy part time (on a team active enought that I have in the area of 1500 high risk warrants in my career), for most of the last 23 years of my career I find pistol mounted lights to be very useful, as do many other officers working the street. Along with my night shift and SWAT experience, my experience as a low-light instructor trainer for Strategos gives me way more than the normal base of experience than the average street cop. Outside of this, many of our guns never had a light on them, as did none of the 800+ G22s that the Indiana State Police had, and they still didn't work. Recently the problems with Milwaukee PD's guns (again almost 1000 pistols) involved, guess what???, no lights. Recently the LAPD was looking at dropping the G22 as their issued pistol due to reliability issues, again not involving WMLs. Now they are looking at the M&P as well as the new Gen 4 Glocks. The G22 has had serious reliability issues for quite some time, hence the new Gen 4 Glock recoil system. A total redesign of the recoil spring assembly didn't just happen for no reason. To steal a quote from another forum on a discussion ref the new gen 4 G22, this from an LAPD firearms instructor; "We had one and I shot the snot out of it. It seems to take care of all of the issues with the 22. Unfortunately it is not retrofittable and is marketed as a "recoil reducer" and not an "our gun is screwed up and we are too cowardly to admit it so here you go we fixed it part". The current Glock 22 is not a true duty ready weapon, I hope it doesn't take a dead cop or armed citizen to get this point across." And for the record, Milwaukee switched to the M&P after working with Glock for over a year and a half trying to get their guns working, then one night they had a copper get shot due to his G22 choking on the street.