Reducing take-up without affecting anything else..? - MP-Pistol Forum

Reducing take-up without affecting anything else..?

This is a discussion on Reducing take-up without affecting anything else..? within the MP Gunsmithing forums, part of the Smith & Wesson MP Forum category; I picked up a 5" Pro/CORE 10098 yesterday that's been on order for a while & have a trigger question. Most aspects of the trigger ...


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Old January 6th, 2015, 07:17 AM   #1
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Reducing take-up without affecting anything else..?

I picked up a 5" Pro/CORE 10098 yesterday that's been on order for a while & have a trigger question. Most aspects of the trigger are fine - the break is probably 3-4 lbs, and the overtravel stop is set well. But there's a ton of pre-travel (take-up) on the trigger. More than any of my other M&P's in fact.

Is there a way to reduce this take-up without changing the break weight, or break point either one?

For that matter, increasing the feel of the reset would also be welcome, but that's minor and I've gotten used to it with my other 9FS's and 9C.
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Old July 13th, 2015, 03:18 PM   #2
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Bump for ideas & suggestions, after 311 views and 0 responses...

I've been using the gun as-is, and while it's functionally fine, I just don't like that much take-up. Any recommendations on replacement triggers for something that's 95% range gun, but may well occasionally serve serious use as well. I'm a little intrigued by the Apex forward-set trigger, but have never used one
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Old July 13th, 2015, 03:47 PM   #3
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Newest style trigger bar and slide stop should increase tactile reset, as will an Apex RAM. Several ways to decrease pretravel, depends on how you are with tools. For a pretravel stop I've drilled the trigger bar and added a set screw where it first contacts the slide lock bar, also glued a piece of Kydex in there (my edc Shield has that), some folks add J.B. weld just in front of the trigger itself (inside the trigger guard, up there where it contacts the frame), you can also install a set screw there, so there are several ways to accomplish it.
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Old July 14th, 2015, 05:45 PM   #4
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Interesting. I've never glued kydex to anything but kydex, and used contact cement for that. What kind of adhesive did you use for that?
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Old July 15th, 2015, 06:29 AM   #5
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The best adhesive I've found for gluing composite materials is black JB weld.
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Old July 15th, 2015, 07:04 AM   #6
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I drilled and tapped the front of my trigger and used a screw to adjust the pretravel. Once I had it set to my liking I used loctite to set the screw. Has the added benefit of moving the trigger back quite a bit. To allow the trigger safety to work you have to remove polymer off the safety until it engages again.

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Old July 16th, 2015, 08:44 AM   #7
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Quote:
Originally Posted by John in ar View Post
Interesting. I've never glued kydex to anything but kydex, and used contact cement for that. What kind of adhesive did you use for that?
There are several ways to do this also. My preffered products are acrylic primer and epoxy resin as it sticks to both sides well, fills gaps well, and is impervious to solvents too. This part is not subject to much stress, just some compression from the trigger return spring, and it's mass is low enough that it's not affected by recoil. Of course, you'll want to clean both surfaces extremely well before applying any adhesive.
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Old July 17th, 2015, 11:00 AM   #8
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Won't opening up the loop on the trigger bar (where it engages the sear) also reduce pretravel?


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Old July 17th, 2015, 02:01 PM   #9
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Yep.
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Old October 15th, 2015, 11:32 AM   #10
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Quote:
Originally Posted by richiecotite View Post
Won't opening up the loop on the trigger bar (where it engages the sear) also reduce pretravel?


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your gains in pre-travel will result in additional Over-Travel
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Old October 15th, 2015, 12:35 PM   #11
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your gains in pre-travel will result in additional Over-Travel
I very slightly opened the loop on my Pro and like it a lot better this way.
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Old October 15th, 2015, 12:58 PM   #12
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Plus an overtravel stop seems easier to make, and can be removed if necessary.

But I think the real answer here is Apex upgrades!


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Old November 29th, 2015, 10:32 PM   #13
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Just be careful when removing pre-travel as that is necessary to make the striker block (drop safety) work. If the trigger is held rearwards too much (to reduce pre-travel) then you may already have the striker block disengaged all the time, and then the gun no longer has a drop safety feature. I had a similar problem with an Apex FSS trigger system. Great short travel, but it was not disengaging the striker block before the sear, so I'd get frequent light strikes. I found I needed to remove some metal from the rear side of the FSS trigger, to lengthen its travel, then I could adjust the trigger bar for minmum overtravel (and more pre-travel) and get the striker block to function properly. Tolerances would mean not all guns would be the same.

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Old February 2nd, 2016, 04:29 PM   #14
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check on the polymer trigger replacement, sposed to help reduce takeup.
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Old February 12th, 2016, 01:17 PM   #15
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i installed the apex polymer trigger and it drastically reduced the take up, zero over travel and shorter reset while maintaining the previous pull weight. not bad for a $40 drop in part.
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