tob, 10/2/11
Since no one has answered you yet I'll give you my take on your question. I have night sights on all my defensive pistols, some by Trijicon, some by Meprolight and some by a company called MMC/PT which is now out of business. The Meprolights are brighter and cheaper. The Trijicons are more expensive but seem to have better customer service. I've emailed both companies about their sights for my pistols and Trijicon always replies promptly. I have yet to get a reply from Meprolight so I usually get the Trijicons knowing they will have customer service backup. Take a look at both models and do some more research and come to an informed opinion. Good luck.
best wishes- oldandslow