This is a discussion on Any Apex trigger owners have this issue? within the MP Pistol Tech Help forums, part of the Smith & Wesson MP Forum category; I have the Apex comp kit, forward set sear, RAM, installed on MY M&P pro CORE. dry fire works perfectly. Pull the trigger and it ...
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|May 7th, 2014, 06:58 PM||#1|
Join Date: Apr 2014
Any Apex trigger owners have this issue?
I have the Apex comp kit, forward set sear, RAM, installed on MY M&P pro CORE. dry fire works perfectly. Pull the trigger and it goes click. Rack the slide and do it again no issues. When I'm firing, it will fire a round, chamber the next round and then it will not fire. I have to re-cock the gun, clearing the chambered round and chamber a new round.. Then it will fire. My question is What is going on?
Why will my M&P not fire the next round? Sometimes I'm lucky and get two rounds in a row to fire with out issue. Seems to only want to fire when the slide is manually racked. Any help would be awesome.
|May 7th, 2014, 07:57 PM||#2|
Join Date: Oct 2007
If you have some overtravel, it's probably due to "dead trigger", which happens with the smaller sear plunger. If you don't have any overtravel, it's likely the hook on your trigger bar needs to be opened up a bit.
|May 7th, 2014, 08:11 PM||#3|
Join Date: Aug 2012
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|May 7th, 2014, 09:54 PM||#5|
Join Date: Apr 2014
I've seen the video where they use a feeler gauge and a flat head screwdriver to open up the loop. I just dont know why I cant get a failure to fire when I'm dry firing. The problem only shows up with live ammo. Thanks for the help guys I will call Apex and see if they got a solution.
|May 8th, 2014, 01:18 PM||#6|
Join Date: Mar 2014
Location: mid valley oregon
For my CORE I used.
Apex alum FSS trigger kit
Apex competition spring kit
Apek RAM kit
Gave me 11.4oz to the Wall
Breaks at 2.2lb
2 steel matches and 500rds not a single problem, love it!
|May 12th, 2014, 11:41 AM||#7|
Join Date: Dec 2012
I have a non-Core M&P with the newer (2012) sear block in it. I've installed the FSS and the Comp spring kit with the appropriate trigger bar loop adjustments. I had the same issues and a change back to the stock sear plunger spring did the trick for me.
|July 4th, 2014, 10:09 PM||#9|
Join Date: Jul 2014
I had a similar issue, so I thought I'd post in here about it.
Got a full-size M&P 40 and I installed an Apex trigger kit and I got a 9mm Storm Lake conversion barrel for it (also a Wolf 13 lb spring and guide rod). Whilst feeding muh M&P some 9mm the gun will sometimes fire, sometimes won't. I can hear the *click* of the striker being deployed but nothing happens. I'll drop the mag and rack the slide and see that the primer has been dimpled on the round, but not enough to detonate the round.
Some mags I'll have no problem and be able to fire them all off, others not so much. I have no idea what's going on. I had to adjust the shepherd's loop on the trigger bar to work with the Apex sear, so I thought that maybe the sear was deploying before the trigger bar was able to lift the striker block, but that can't be the case since the round was visibly dimpled.
|July 5th, 2014, 11:40 AM||#10|
Join Date: Sep 2006
bigpappa, I recommend you post this in the Full Size board by itself for best responses, tacking it onto another message usually doesn't get the desired results, and you get a lot more traffic on the Full Size board.
My suggestion, call APEX.
|March 16th, 2015, 08:42 PM||#11|
Join Date: Feb 2015
Location: Los Angeles, CA
Hey any updates on how you got this fixed? Having exact same issues at the moment... =\ My trigger bar loop was at .029 so i adjusted it to .018 not sure if it fixed it but i will find out when i go to the range again..
|July 7th, 2016, 01:05 PM||#12|
Join Date: Apr 2007
The issue is sear flutter. You need a stronger sear spring. Had the same issue and the stronger sear spring fixed it.
Apex says to not use the Competition sear spring with the Forward Set Sear. They are correct!!
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