I'm about to pull the trigger on getting another xd and am debating 40sw or 9mm. I currently own a 9mm sub compact and love it. But now my wife is learning to like shooting so its time to add another pistol to the vault. The sub is carried, the new weapon will be for home defense. My question is: Can a lasermax be used in an xd40 (4") with 9mm conversion barrel installed???