M&P DIY Trigger job

spatchcock · Nov 27, 2015

I have an M&P CORE 40 that I kind of don't like. I was thinking of performing this DIY trigger job on it to see if it helped me like it more. Have anyone tried it? What was your experience, and do you have any tips?

http://www.burwellguns.com/misc/M&Ptriggerjob.pdf
https://www.youtube.com/watch?v=zGU5kZL85Uw

Thanks!

Reloader · Nov 27, 2015

I did a couple trigger jobs like this. It got rid of the gritty feel and dropped the pull a pound and a half. You'll still have the long pull and over travel...install the Apex SRT and seer and be done with it!

spatchcock · Nov 28, 2015

Yeah, I thought about a replacement trigger but didn't want to commit the money to it if I wasn't going to keep it. Is this the set you were recommending?

https://store.apextactical.com/WebDirect/Products/Details/191816

Do you know what they mean by "new style sear housing block"? How would I tell if I have that?

alucard0822 · Nov 29, 2015

The methods Burwell uses are sound, not just for M&Ps, but several other models, his trigger job was the most popular before Apex started basically producing replacement parts that were modified similarly. Polish contact surfaces, radius sharp edges, and delay the sear engagemet to the rear of the trigger stroke, works well for GLOCK too. I've done a couple M&Ps, I chuck the striker button in a drill, and spin it aggainst sand paper and xcompund loaded felt to radius and polish it. I don't reduce the primary engagement surface(sear to striker) on the sear, you can get a 4# pull without it, and it does carry some risk.

Magnumite · Nov 29, 2015

Nice article on the trigger job. I worked my way through my M&P's trigger and it presently has about a 5 pound pull weight. It's smooth and I just need to set back the engage block contact profile as illustrated. If the pistol was even half as accurate as it should be I would have done it by now.

spatchcock · Nov 29, 2015

Magnumite, I'd be curious to find out how it turns out. I won't have time to try it for a few weeks.

BradMacc82 · Nov 30, 2015

Just grab the Apex goodies if you're wary of doing the 'hard' stuff yourself.

2 drop-in parts took my M&P .45 from a roughly 6.25 pound pull (with lots of grit and creep) down to 3.5 pounds in less than an hour. Granted, I got lucky that I didn't have to tweak the trigger bar loop any.

jrumann59 · Dec 8, 2015

BradMacc82 said:
Just grab the Apex goodies if you're wary of doing the 'hard' stuff yourself.

2 drop-in parts took my M&P .45 from a roughly 6.25 pound pull (with lots of grit and creep) down to 3.5 pounds in less than an hour. Granted, I got lucky that I didn't have to tweak the trigger bar loop any.

This, I did my M&P9 with Apex goodies, nothing like a nice break and solid reset, and no damn over travel.

d33rhunt3r · Dec 12, 2015

I replaced my trigger with the flat faced aluminum trigger, FSS, and ultimate striker block, and will be getting the reset assist mechanism as well all for my M&P 9L. I also have the duty carry action enhancement kit on my M&P 45c.

I love the Apex products. Very straightforward install, as well as instructional videos.

ridgerunner729 · Dec 26, 2015

You can possibly save a lot of bucks by taking an intermediate step that costs nothing and see how you like it.

Polishing all the contact surfaces and especially radiusing and polishing the striker block button can make a big difference in the feel. With that being said, I have all the Apex goodies in my 9L.

M&P DIY Trigger job

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