Joined:
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Posts:
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EE: 100% (1)
SC, USA
Posted: 7/3/2026 11:46:29 PM EDT
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Is the safety plunger the "wall" you feel in the pull? If the safety plunger is more rounded/polished and has a lighter spring I know this reduces trigger pull weight but does this make the action feel more rolling break vs a defined wall? *****I'm not talking about a Glock action***** |
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Originally Posted By Turbo30cal: Is the safety plunger the "wall" you feel in the pull? If the safety plunger is more rounded/polished and has a lighter spring I know this reduces trigger pull weight but does this make the action feel more rolling break vs a defined wall? *****I'm not talking about a Glock action***** The safety plunger is part of the feeling before the wall. If it's roughly finished, it can give a gritty feel to the trigger. The sear/striker engagement and spring tension will determine the strength and feel of the break. |
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Originally Posted By 11boomboom:The safety plunger is part of the feeling before the wall. If it's roughly finished, it can give a gritty feel to the trigger |
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VERY light smoothing can help with any gritty feel. Note I said smoothing, not polishing to a mirror shine. It takes a remarkablely little amount of smoothing to prevent rough surfaces from dragging. Safety plunger springs don't create roughness and don't add much to trigger pull weight. Remember, the plunger is an absolutely critical safety feature. Install a lighter spring and the plunger can stick, deactivating the safety. All it takes is just a little bit of fouling to cause a sticky safety block. With a striker fire and a sticky plunger you're carrying a hand grenade with the pin pulled. |
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Originally Posted By dfariswheel: VERY light smoothing can help with any gritty feel. Note I said smoothing, not polishing to a mirror shine. It takes a remarkablely little amount of smoothing to prevent rough surfaces from dragging. Safety plunger springs don't create roughness and don't add much to trigger pull weight. Remember, the plunger is an absolutely critical safety feature. Install a lighter spring and the plunger can stick, deactivating the safety. All it takes is just a little bit of fouling to cause a sticky safety block. With a striker fire and a sticky plunger you're carrying a hand grenade with the pin pulled. Unless it’s a Glock or a pistol with a thumb safety that holds the sear rigidly, in which case the striker foot will have to snap off instantaneously to fire the gun. |
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Originally Posted By HighPlains1911: Unless it’s a Glock or a pistol with a thumb safety that holds the sear rigidly, in which case the striker foot will have to snap off instantaneously to fire the gun. Originally Posted By HighPlains1911: Originally Posted By dfariswheel: VERY light smoothing can help with any gritty feel. Note I said smoothing, not polishing to a mirror shine. It takes a remarkablely little amount of smoothing to prevent rough surfaces from dragging. Safety plunger springs don't create roughness and don't add much to trigger pull weight. Remember, the plunger is an absolutely critical safety feature. Install a lighter spring and the plunger can stick, deactivating the safety. All it takes is just a little bit of fouling to cause a sticky safety block. With a striker fire and a sticky plunger you're carrying a hand grenade with the pin pulled. Unless it’s a Glock or a pistol with a thumb safety that holds the sear rigidly, in which case the striker foot will have to snap off instantaneously to fire the gun. That’s not how safety systems are designed— engineers design in these safeties to require multiple independent failures to minimize the odds of a catastrophic event occurring. |
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It used to be that the gen 1 M&Ps got “trigger jobs” just by smoothing out the plunger. Apex became known for their replacement. https://www.apextactical.com/ultimate-striker-block-mp |
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Originally Posted By NN300BLK: That’s not how safety systems are designed— engineers design in these safeties to require multiple independent failures to minimize the odds of a catastrophic event occurring. Originally Posted By NN300BLK: Originally Posted By HighPlains1911: Originally Posted By dfariswheel: VERY light smoothing can help with any gritty feel. Note I said smoothing, not polishing to a mirror shine. It takes a remarkablely little amount of smoothing to prevent rough surfaces from dragging. Safety plunger springs don't create roughness and don't add much to trigger pull weight. Remember, the plunger is an absolutely critical safety feature. Install a lighter spring and the plunger can stick, deactivating the safety. All it takes is just a little bit of fouling to cause a sticky safety block. With a striker fire and a sticky plunger you're carrying a hand grenade with the pin pulled. Unless it’s a Glock or a pistol with a thumb safety that holds the sear rigidly, in which case the striker foot will have to snap off instantaneously to fire the gun. That’s not how safety systems are designed— engineers design in these safeties to require multiple independent failures to minimize the odds of a catastrophic event occurring. Some engineers do so. |
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Originally Posted By BuddyChryst: It used to be that the gen 1 M&Ps got “trigger jobs” just by smoothing out the plunger. Apex became known for their replacement. https://www.apextactical.com/ultimate-striker-block-mp The machining in the slide and on the OEM plunger was pretty rough. It gave the gun a very gritty trigger feel. S&W makes great guns but it perplexes me when they do things like this on their flagship model line to save a few bucks. |
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Originally Posted By dfariswheel: …and don't add much to trigger pull weight. I’d say that actually depends on the gun and system design details. On the Brazilian contract Beretta APX pistols, the Brazilians requested an extra strong safety plunger spring to prevent ADs. Mine made the trigger pull over 10 pounds, ridiculous. I replaced it with a standard APX spring and the pull dropped immediately to ~5.5 pounds. Safety plunger ramp design, angle, and other factors can have an influence as well. A longer, gentle slope will not be as noticeable in the trigger as a short, high-angle design. Any roughly finished parts, including the plunger itself, its channel, and the ramp will each contribute their own minute feel. |
USAF-retired, GOA, FPC
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Originally Posted By Kokodude: I accidentally melted the plastic plunger in my CSX E-Series while heating up an RDS screw. I ran the gun without it and the trigger pull/reset was the smoothest I had ever felt in a striker-fired pistol. ??? Do you mean a different SW pistol? Because the CSX is definitely hammer fired. https://www.smith-wesson.com/product/s-w-csx-e-series-3-6-inch |
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Originally Posted By NN300BLK: ??? Do you mean a different SW pistol? Because the CSX is definitely hammer fired. https://www.smith-wesson.com/product/s-w-csx-e-series-3-6-inch The firing pin block is plastic in the CSX series of pistols. |
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Originally Posted By Kokodude: The firing pin block is plastic in the CSX series of pistols. Originally Posted By Kokodude: Originally Posted By NN300BLK: ??? Do you mean a different SW pistol? Because the CSX is definitely hammer fired. https://www.smith-wesson.com/product/s-w-csx-e-series-3-6-inch The firing pin block is plastic in the CSX series of pistols. That it is. Originally Posted By Kokodude: the trigger pull/reset was the smoothest I had ever felt in a striker-fired pistol. It’s the “striker-fired pistol” part I don’t understand, because the one I’ve handled definitely is hammer fired.  
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Originally Posted By NN300BLK: That it is. It’s the “striker-fired pistol” part I don’t understand, because the one I’ve handled definitely is hammer fired. Originally Posted By NN300BLK: Originally Posted By Kokodude: Originally Posted By NN300BLK: ??? Do you mean a different SW pistol? Because the CSX is definitely hammer fired. https://www.smith-wesson.com/product/s-w-csx-e-series-3-6-inch The firing pin block is plastic in the CSX series of pistols. That it is. Originally Posted By Kokodude: the trigger pull/reset was the smoothest I had ever felt in a striker-fired pistol. It’s the “striker-fired pistol” part I don’t understand, because the one I’ve handled definitely is hammer fired. Oh, ya, that's embarrasing. I should have just said the smoothness of the trigger. |
