Ok, for fun I would like to purchase a lazer for my G27. I see a couple types: 1) replaces the slide spring (recoil rod) 2) add on to the rear grip 3) replaces rear sight 4) goes on the front of the triger gaurd. This is a CCW gun. Goes in my pocket hoster. Looking for long life, semi acurate, good fit and finish. Wanna kill these ads? We can help!