Quote History Quoted:
Always in the past used Trijicon, never had a problem.
First fo around with Meprolight.
Is Meprolight known to be inferior ?
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Inferior, umm no, they use the same Tritium as Trijicon uses. I've installed them on an M&P40c and a M&PShield .40... However, the first set they sent me was a rear only sight when I ordered just a front sight for the Compact. I called them, the guy was extremely nice, said to keep the rear and sent me the matching front the next day. So aside from the shipping mix up the sights on the Compact and Shield have been dead on at 25 yards, of which I set all my pistol's POA/POI for.
Someone may have gotten the packaging incorrect OP. Call them. If you have calipers use them and give the measurements to the customer care rep...
ETA: Disregard my post. I have/installed Ameriglo sites, not Meprolights. I don't know what I was thinking...