Posted: 5/4/2011 1:46:51 PM EDT
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So, I've been mostly ignoring my Pro, since my standard is my carry/go to gun, and I've been shooting, tinkering, and generally paying all my attention to that. Other than throwing in an Apex competition kit and a RAM, I really haven't done much with the Pro. The competition kit left the trigger return spring so weak, that pulling the trigger wouldn't always over come the resistance of the trigger safety, resulting in a small blurp/jump in the trigger pull, and the pull was so light I found that it was hard for me to control getting back to the reset point very easily. The reset itself, with the RAM, was still less than stellar compared to my standard M&P with the D/C kit and RAM.
I'd ordered some MA trigger return springs from S&W, which are quite heavy. I don't know the weight off hand. I finally got around to installing one today, and wow, it made all my dreams come true. The reset is Glock-like, the trigger pull smooth from one end to the other, and the additional weight is helping my consistency in trigger pull and "riding the reset." So, CSB and all, but I thought I'd share. I know the heavier spring defeats part of the purpose of the Apex parts, but it's really working for me,. |
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The only thing I did with my pro was polish the trigger parts and round the plunger. Not as light as my apex one with just the sear,but it work great. I tried that, I couldn't get it smooth enough to my liking. Weight doesn't bother me so much as gritty travel. Both of mine are early guns, and while the Pro was better than the standard, they both kinda sucked off the shelf. |
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The only thing I did with my pro was polish the trigger parts and round the plunger. Not as light as my apex one with just the sear,but it work great. I tried that, I couldn't get it smooth enough to my liking. Weight doesn't bother me so much as gritty travel. Both of mine are early guns, and while the Pro was better than the standard, they both kinda sucked off the shelf. Did you shorten the FPB spring? other than the higher weight and the reset being farther forward, mine feels great with no grittiness. |
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On my Pro I liked the PC sear that it came with alright. I installed the USB, RAM and Comp Spring Kit from Apex, and I found the same thing you did. The trigger return spring was too light and I wouldn't disengage the trigger safety in time. In the factory TRS on the Pro there is a what looks like compressed cotton dowel(for lack of a better word). I took that out and it seemed to drop the pull down a little, but it also makes the trigger pivot in time, and it helps get back to reset better than the Comp Spring. Hope that made sense. |
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On my Pro I liked the PC sear that it came with alright. I installed the USB, RAM and Comp Spring Kit from Apex, and I found the same thing you did. The trigger return spring was too light and I wouldn't disengage the trigger safety in time. In the factory TRS on the Pro there is a what looks like compressed cotton dowel(for lack of a better word). I took that out and it seemed to drop the pull down a little, but it also makes the trigger pivot in time, and it helps get back to reset better than the Comp Spring. Hope that made sense. That's interesting. My factory spring didn't have any wadding, but the MA springs do. They're also inked red. |
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The only thing I did with my pro was polish the trigger parts and round the plunger. Not as light as my apex one with just the sear,but it work great. I tried that, I couldn't get it smooth enough to my liking. Weight doesn't bother me so much as gritty travel. Both of mine are early guns, and while the Pro was better than the standard, they both kinda sucked off the shelf. Did you shorten the FPB spring? other than the higher weight and the reset being farther forward, mine feels great with no grittiness. What is FPB an acronym for? I didn't shorten any springs. |
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I reread it and you put the comp kit in. The comp kit already comes with a shorter spring for the FPB. Did you put it in? Yes, I installed everything with the comp kit. I have no complaints with the comp kit as far as smoothness of the sear, etc. Only that the trigger pull became so light that the trigger safety would not reliably disengage prior to interfering with the frame, which would cause a bump in the trigger pull. Installing the heavier trigger return spring, while increasing the weight of the trigger pull, resolved that and made it easier for me to make a consistent trigger pull every time, easier to ride the trigger back to the reset point as well. That's all I was trying to say/accomplish with this thread. |
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I reread it and you put the comp kit in. The comp kit already comes with a shorter spring for the FPB. Did you put it in? Yes, I installed everything with the comp kit. I have no complaints with the comp kit as far as smoothness of the sear, etc. Only that the trigger pull became so light that the trigger safety would not reliably disengage prior to interfering with the frame, which would cause a bump in the trigger pull. Installing the heavier trigger return spring, while increasing the weight of the trigger pull, resolved that and made it easier for me to make a consistent trigger pull every time, easier to ride the trigger back to the reset point as well. That's all I was trying to say/accomplish with this thread. If you round out the notch on the back of the trigger safety, it will minimize this. Regardless, this is why I use the DCAEK trigger return spring. Its heavier, but the result is a very smooth pull. |
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I reread it and you put the comp kit in. The comp kit already comes with a shorter spring for the FPB. Did you put it in? Yes, I installed everything with the comp kit. I have no complaints with the comp kit as far as smoothness of the sear, etc. Only that the trigger pull became so light that the trigger safety would not reliably disengage prior to interfering with the frame, which would cause a bump in the trigger pull. Installing the heavier trigger return spring, while increasing the weight of the trigger pull, resolved that and made it easier for me to make a consistent trigger pull every time, easier to ride the trigger back to the reset point as well. That's all I was trying to say/accomplish with this thread. I see. Sorry for the confusion. I understand what you mean now. The end of the trigger safety part is hitting the frame. I noticed it on some of my freinds that have the Comp kit installed. It will wear away in time. Or like the other poster said, you can open the area little. |