So two months ago I still had the "dot in the box" stock ploymer sights on my G27. Then I added Mepro night sights (only brand the LGS stocks, and I gotta say I've been pretty happy with them) and now today added a laser grip. Got a lot of practice in with just the night sights before getting the laser grip, will be interesting to see how it affects my accuracy when I make another range trip this week. I've been quite pleased with the night sights, and for some reason it's much easier to pick out the front sight than with the standard Glock sights, even when they white over in the daytime. Batteries die on the laser and I've still got robust night sights ready to go. Some shameless photos..... (Serpa fits with room to spare, and more importantly keeps me from having to photoshop out the SN:embarassed:, the G23 mag is the spare, I carry with the G27 9 rounder as my primary) The extra width does rule out the use of some of my CC holsters. I'll add an update after I go to the range later in the week but if the dry fire was any indication I think the laser will help be a good training aid, and I'll take any edge in a self defense situation that I can get. And fwiw, I do carry a Blackhawk Gladius Flashlight anytime I'm up and about, so despite as the pictures may show I'm NOT using the laser for ID or in place of a flashlight, just sight picture enhancement and as a tell for any flinch or bouncing I have during the course of shooting at the range.