Guns&Religion
Member
- Joined
- Dec 16, 2010
- Messages
- 132
I bought an M&P40c last year. I was a little bothered though, by a problem I encountered with it. It would misfire about once every hundred rounds. That is to say, I would pull the trigger, and hear the "click" on a live round, but no discharge.
I then read on a couple of S&W forums about how the striker can develop problems if too much oil is applied to it. In these cases, the oil will mix with the powder residue and form a kind of gritty sludge that binds up the striker.
I decided to test the claim, and when I cleaned the pistol, I also took out the striker. After cleaning it, I put a Q-tip into the "compartment" (I'm not sure of the correct term), and cleaned out quite a large amount of the gritty black sludge. I immediately noticed a difference in how the firing pin an spring worked, it was definitely smoother.
So far, I've taken it to the range once since, no malfunction so far.
Here's a good video on how to remove the striker assembly.
http://www.youtube.com/watch?v=L9GXtxmSRDk
I then read on a couple of S&W forums about how the striker can develop problems if too much oil is applied to it. In these cases, the oil will mix with the powder residue and form a kind of gritty sludge that binds up the striker.
I decided to test the claim, and when I cleaned the pistol, I also took out the striker. After cleaning it, I put a Q-tip into the "compartment" (I'm not sure of the correct term), and cleaned out quite a large amount of the gritty black sludge. I immediately noticed a difference in how the firing pin an spring worked, it was definitely smoother.
So far, I've taken it to the range once since, no malfunction so far.
Here's a good video on how to remove the striker assembly.
http://www.youtube.com/watch?v=L9GXtxmSRDk