Great product. I put these on my .45 xd and love it. sight are broght and can be seen in complete darkness, but lets be honest these are for low light conditions. If you can't see your target you shouldn't be shooting at it. they are about the sime hight and width as stock sights. A main reason I decided to go with these sights is you can not see the sights glowing when the gun is pointed at you, So there is nothing to give you position away. trijicon makes a great product. only complaint it eventualy the gas in the sights looses its glow and need to be replaced and I would recommend a gunsmith put them on it you don't have the proper tools.
Pros: great fit, looks, bright.
Cons: won't glow forever, recomend a gunsmith to install
This review was written in the old system and had content requirements that are different than reviews written today.