the SE should let you take the trigger gaurd off. do that first. then take the pin out with a hammer and hole punch or small nail . then take out the smaller pin that holds the trigger spring. put in boss trigger using pin. if you have a trigger frame with out the removable trigger gaurd, you have to take off the eye covers than the trigger frame. then remove the 2 screws on the board. then the pin, then pry the board up lightlyand slide the stock trigger out.
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