APEX Sear and RAM - Light Primer Strike? - Page 3 - MP-Pistol Forum

APEX Sear and RAM - Light Primer Strike?

This is a discussion on APEX Sear and RAM - Light Primer Strike? within the MP Gunsmithing forums, part of the Smith & Wesson MP Forum category; We have done about 100 trigger jobs on the M&P series. A lot of them had the "S" trigger bar and a small % of ...


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Old September 19th, 2014, 08:13 AM   #31
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We have done about 100 trigger jobs on the M&P series. A lot of them had the "S" trigger bar and a small % of them had these problems with the Apex sear. We had to go back to the stock sear and modify it to get what we wanted. If you are looking a pull weight above about 4.5 lbs the Apex sear is not necessary, only for the sub 2 lbs pull weights.
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Old September 19th, 2014, 08:53 AM   #32
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Keep in mind that with guns that have had a decent amount of rounds shot through them, it could be a dirty striker channel. I had numerous light primer hits with my 9c. It started off with one during a match. Then I took it to the range, and had light primer hit after light primer hit. I was very frustrated to say the least since this gun has been flawless. Then someone mentioned the striker channel. I took the end cap off and cleaned the striker channel. Boy, it was grimy! The grim was slowing down the movement of the striker, thus causing light primer hits. Cleaning the striker channel (DO NOT put oil in there!) made the issue go away. I then cleaned the striker channel on the 4 other M&P's we have. One was really grimy and the rest, not as much. They all run flawlessly and they all have Apex parts in them.
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Old September 19th, 2014, 11:03 AM   #33
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Originally Posted by Bob Hostetter View Post
If you are looking a pull weight above about 4.5 lbs the Apex sear is not necessary, only for the sub 2 lbs pull weights.
To limit the APEX conversation to trigger weight alone, is akin to limiting all Ferrari conversations to paint color. A great disservice to the massive improvement APEX trigger parts and kits offer over the factory trigger.
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Old September 19th, 2014, 11:17 AM   #34
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The same effect can be had with modified stock parts in all areas of the trigger pull, the use of Apex parts merely reduces the amount of hand work necessary. Please don't misunderstand me, I like Apex parts and use a lot of them. But there are times when modified stock parts are a better choice.
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Old March 9th, 2016, 08:38 PM   #35
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Originally Posted by C1ggy View Post
Here's an update for you guys wondering about my issue.. I contacted APEX tactical and got some interesting news..

It turns out that if you have an "S" stamped trigger bar (current, new m&p models), the current apex sear will NOT be compatible. Due to the trigger bar being approx 0.0010" shorter(Hence the "S" for short) is throw the engagement point off.

We are still in the process of working out an agreement for my issue.
OK, I'll bight. Is there any way to determine if you have a "S" stamped trigger bar without having to disassemble the gun? Or is disassembling the gun a must to find the "S" stamp? And if yes where on said trigger bar is it located? I am presently looking at my PR0 model trigger bar and there are no letters of any kind on it any where I can see while it is still assembled. I ask because I am about to order a Apex Duty/Cary kit with RAM for my 4.25" M&P Pro 9mm.

Thanks,
Art.
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Old March 9th, 2016, 09:08 PM   #36
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Here's an H series trigger bar pic from the G&R Tactical site. The letter designation can be seen with the slide removed.

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