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62 Posts
Well, I should have just left well enough alone. I had done a trigger job per Dan's instructions on my 9mm M&P. The results were drastically different than from the factory- crisp trigger pull around 4 lbs with a positive short reset. After a few days, I decided to try to take it one step further- a mistake in hindsight.
On the original trigger job I hadn't done anything regarding cutting the top of the sear, so I did this. As per the instructions, doing this lengthens the reset, so you have to rec-bevel the sear deeper to shorten the reset again. I went about 1-2 file swipes too far. The reset is short again- shorter than the first time even. However, my file swipes changed the angle of the sear enough where it contacts the trigger bar to cause unreliable trigger pulls. If I pull the trigger from the very bottom, the trigger will pull all the way to the overtravel stop and not release the striker. Pulling the trigger from the normal position is fine and works reliably. I'm not comfortable with a trigger that is dependent on where I pull it to determine its reliability.
Well, lesson learned. I've ordered another sear housing from Brownells. Round #2 on the trigger job will commence in a couple of days.
On the original trigger job I hadn't done anything regarding cutting the top of the sear, so I did this. As per the instructions, doing this lengthens the reset, so you have to rec-bevel the sear deeper to shorten the reset again. I went about 1-2 file swipes too far. The reset is short again- shorter than the first time even. However, my file swipes changed the angle of the sear enough where it contacts the trigger bar to cause unreliable trigger pulls. If I pull the trigger from the very bottom, the trigger will pull all the way to the overtravel stop and not release the striker. Pulling the trigger from the normal position is fine and works reliably. I'm not comfortable with a trigger that is dependent on where I pull it to determine its reliability.
Well, lesson learned. I've ordered another sear housing from Brownells. Round #2 on the trigger job will commence in a couple of days.