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Old 08-09-2017, 09:41 PM
moonpup moonpup is offline
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Default Apex sear not going flush

Let me start by saying I've installed numerous Apex DCAEK's, so I'm pretty familiar with them. This one doesn't want to lay perfectly flush when the trigger is pulled. It's pretty close, and the gun functions fine in terms of firing and reset.

I don't believe it needs a trigger bar loop adjustment, because I can't push it down flat with a punch. I'm thinking either the sear is out of spec or the sear spring is a little too strong or long. What do you think? I'm wondering if I'll round out the sear or firing pin catch if I don't get it level. To me it looks like it already may be rounding.




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Last edited by moonpup; 08-09-2017 at 09:47 PM.
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Old 08-09-2017, 09:48 PM
JVSIII JVSIII is offline
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First thing I would do is take it apart and put it back together. Maybe check that the sear plunger is going into the recess properly.

If your still having an issue, call Apex, they have great CS.

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Old 08-09-2017, 09:59 PM
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Bkreutz Bkreutz is offline
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I've put Apex sears in 3 M&P's, none of them went flush like the stock sear. I thought it might be a problem, but have put over 100K through those 3 without any problems so don't think it really is a problem. You could contact Randy at Apex if it still bothers you.
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Old 08-09-2017, 10:16 PM
bsmiley bsmiley is online now
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My Apex sears go flat. I'd Email Scott Folk and send pics. Scott@apextactical.com
He will respond... or get the right person to respond.

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Old 08-09-2017, 10:17 PM
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I have also installed 4 or 5 apex sears and none of them sit totally flush. they don't need to. all they need to do is get out of the way to let the striker fall. in fact if you do have apex sears that are sitting totally flush I would bet that you have more over travel then you need to have. over travel with the M&P 1.0's is controlled by closing the trigger bar loop. timing between the trigger bar activating the striker block and sear are critical for proper function but not as hard to achieve with the duty/carry system. much less tolerance for timing error in the FSS systems. in general with the apex and stock systems you want as little over travel as possible. just a very small amount to allow for temperature expansion extremes
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Old 08-09-2017, 10:28 PM
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Quote:
Originally Posted by moonpup View Post
I'm wondering if I'll round out the sear or firing pin catch if I don't get it level. To me it looks like it already may be rounding.
Apex sears are already rounded off on the back and they have some sort of light oxide treatment that comes off where the tang of the striker sits so it may look like its wearing but its not.

strikers on an the M&P system are like 98% cocked unlike glock so the sear doesn't pull the striker back much at all when the trigger is pulled and apex sears are machined from a solid block and hardened as opposed to the stock sears that are metal injection molded so it is very unlikely that it will ever show any wear... unless you happened to get a dud off the line.
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Old 08-10-2017, 08:12 AM
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That's not a defect, in some cases minor TB is needed after replacing the sear with the apex sear and it doesn't have to be completely flush, if the gun operates as it should leave it like that, if you want it to be flush adjust the trigger bar loop.
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Old 08-10-2017, 01:37 PM
moonpup moonpup is offline
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Thanks for the feedback, I have an email with photo into Apex Tactical. Waiting to hear back. In the meantime, I may take the sear assembly back out and check the plunger and spring.


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Old 08-10-2017, 03:42 PM
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I have installed three that were not flush. After the first one I sent a picture to Apex, they said as long as it functions properly, then no problem.

Have several thousand rounds through the three. They function just fine...

Will
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Old 08-10-2017, 04:10 PM
Randy Lee Randy Lee is offline
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Hello moonpup,

What you are seeing with our sear is normal. Our sear cam (the part that touches the trigger loop) is designed to reduce over travel. You should not need to open the loop, unless you have less than .020-.030" of overtravel.
There is a misconception that the sear needs to fall to the horizontal position when the trigger is pulled fully to the rear. The factory stock sear will move to this position, but it also adds what I consider to be excess overtravel that can adversely affect accuracy potential as a result.

Hope this helps,

Randy
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Old 08-10-2017, 05:54 PM
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Quote:
Originally Posted by Randy Lee View Post
Hello moonpup,

What you are seeing with our sear is normal. Our sear cam (the part that touches the trigger loop) is designed to reduce over travel. You should not need to open the loop, unless you have less than .020-.030" of overtravel.
There is a misconception that the sear needs to fall to the horizontal position when the trigger is pulled fully to the rear. The factory stock sear will move to this position, but it also adds what I consider to be excess overtravel that can adversely affect accuracy potential as a result.

Hope this helps,

Randy
Straight from the man himself! Nice! Thanks Randy for all our Apex goodness!
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Old 08-10-2017, 06:01 PM
Randy Lee Randy Lee is offline
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Glad I could help!
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Old 08-10-2017, 08:38 PM
moonpup moonpup is offline
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Randy, thanks so much for taking the time to comment! Much appreciated!! Your statement makes complete sense and answers my question. Love your products and customer service, take care.


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