2 stage triggers have been a source of trouble in duty weapons they walk a lot of there pins and make the gun usless ost guys running them in the leo classes have anti walk pins placed on them after a few hundred rounds down range they are made for matches not duty grade guns and there are slower to trigger reset as well i should this in class for a dept by letting them try out 2 of the same guns one with a a 2 stage and one with a single stage the times were much faster with the single stage than the two stagge and there was no loss of accuracy at 100yds or less between the two.... i have seen to many 2 stage triggers go bad in leo classes with full auto and semi