Comments on: M&P Monday: Week Six

By: Suburban

Suburban — Mon, 11 Jan 2010 03:50:41 +0000

I had a similar problem with the trigger of my M&P 9 Pro not resetting.

I just got the pistol back from S&W (extractor replacement), and the gun was completely dry. I had a round in the chamber that didn’t seem to want to let go of the barrel, but the slide seemed to be in battery.

By: ToddG

ToddG — Thu, 04 Sep 2008 05:20:32 +0000

Cruhmm — It wasn’t dirty parts, and I don’t believe it would be similar to dirt/mud testing. A thick grease was injected into an otherwise protected area of the action.

But yes, as mentioned previously there is also the possibility that the modified sear simply wore to the point that it skipped engagement with the striker. That’s one reason we switched the gun over to the Performance Center sear.

By: Cruhmm

Cruhmm — Thu, 04 Sep 2008 05:14:56 +0000

I was wondering, considering that this may be a problem caused by dirty parts, what do these stoppages say about the gun’s reliability. Several other guns have been put through mud, sand, water, and everything else and (reportedly) still fired without malfunction. I have yet to find any similar tests run on the M&P.

Considering your M&P is modified, could that have been the issue? I’ve been following this torture test and this remains a curious point for me.

Love the site. Thank you.

By: ToddG

ToddG — Wed, 04 Jun 2008 02:58:11 +0000

Still working out the details on that, given that I managed to cause a problem last time.

I’d say a little bit on the sear, a little bit on the trigger bar, and a little bit on the face of the striker where it contacts the sear would be safe. Beyond that, I’d recommend detail stripping the gun.

By: JoeB

JoeB — Wed, 04 Jun 2008 00:32:10 +0000

So Todd, where do you apply TW25B? I’ve never used anything but some light gun oil at the 5 spots indicated in the owners manual for lubrication. With this minor exception, I take it you like this grease over oil?