The Ameriglo SW-145, 3 dot sights for the S&W Shield seem to be well made and potentially very rugged. As another reviewer noted, the Shield is a tough gun to change sights on. The problem is not so much with the aftermarket sights as the tight dove-tail slots on the slide. I made and used a bronze (softer than steel, harder than brass) punch to drive out the original sights. After that the installation was pretty straight foward (sandpaper and a file). I like how the sights make my gun easier to find in the dark, but I wish the rear face of the rear sight blade had been sloped forward, matching the angle of the slide, for a less conspicuous print profile and a smoother draw from concealment. Maximizing the sight radius is pointless on a pocket pistol like this. Overall, the addition of these sights has improved an already nice pistol.
Pros: The tritium dots are quick to acquire and easy to see under any conditions.
Cons: As this is a concealled carry weapon I wish the rear surface of the rear sight blade was angled forward for a more snag resistant draw.
This review was written in the old system and had content requirements that are different than reviews written today.