Crimson Trace Laserguard Green Laser Sight for Springfield Full Size XD / XDM - LG-453 was easy to install and was pre-aligned. I just had to go to the range and finish adjusting it to be dead-on. I used it to align the adjustable sights on my Springfield XD(M) competition model. After getting all sights adjusted I did some shooting. I like it! I can't see the Green Laser past 20yds. It is really only useable to about 15yds on sunny day. My factory sights are no problem hitting small target at 50yds. I have to do more shooting in differing conditions to determine the final verdict.
Pros: Easy to install and works out of the box as advertised
Cons: Even with the Green Laser one can only see the laser during day light hours to 20yds
This review was written in the old system and had content requirements that are different than reviews written today.