agksimon
Member
The M&P22 is very simple to clean up the trigger. I've done a few now and it took over a pound off the pull and made it much smoother.
Using a lighted magnifier, I took a new, hard Arkansas stone with good edges and lightly honed the hammer, where it contacts the sear. Don't change any of the geometry and watch as you hone, to make sure you'e polishing straight not angled, in both directions, so that it polishes evenly all over, just enough to remove tool marks. You'll remove less than a half-thousanth, so no worry about going through the case hardening, which is supposed to be about 10 thousanths thick.
When done, using a toothpick, apply a tiny dab of aluminum anti-seize to the contact points (it stains, so don't get it anywhere else). JP Enterprises recommends aluminum anti-seize, as it stays put longer than other lubricants.
The trigger pull should now be around 3 to 4lbs and break very cleanly.
Disclaimer: The above should not be attempted, unless you know what you're doing. If you're not absoulutely sure, take it to a professional gunsmith.
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Using a lighted magnifier, I took a new, hard Arkansas stone with good edges and lightly honed the hammer, where it contacts the sear. Don't change any of the geometry and watch as you hone, to make sure you'e polishing straight not angled, in both directions, so that it polishes evenly all over, just enough to remove tool marks. You'll remove less than a half-thousanth, so no worry about going through the case hardening, which is supposed to be about 10 thousanths thick.
When done, using a toothpick, apply a tiny dab of aluminum anti-seize to the contact points (it stains, so don't get it anywhere else). JP Enterprises recommends aluminum anti-seize, as it stays put longer than other lubricants.
The trigger pull should now be around 3 to 4lbs and break very cleanly.
Disclaimer: The above should not be attempted, unless you know what you're doing. If you're not absoulutely sure, take it to a professional gunsmith.
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