The S&W M&P problem thread

[Ed L.]

Oops, I forgot about the magazine problems I encountered with the M&P 9mm with the follower sticking in one case and rounds getting lodged next to each other in another. I had each of these occurin about 4000 rounds with two different magazines. I addressed the issue by replacing the stock mag springs with ISMI extra power springs and updated the followers to some newer followers marked with the number 9 on them.

Here is a link to the whole thread on the topic:

https://www.m4carbine.net/showthread...light=magazine

[C4IGrant]

Oops, I forgot about the magazine problems I encountered with the M&P 9mm with the follower sticking in one case and rounds getting lodged next to each other in another. I had each of these occurin about 4000 rounds with two different magazines. I addressed the issue by replacing the stock mag springs with ISMI extra power springs and updated the followers to some newer followers marked with the number 9 on them.

Here is a link to the whole thread on the topic:

https://www.m4carbine.net/showthread...light=magazine

Just as an FYI, per S&W, mag springs should be changed out every 3,000rds.


C4

[crowkiller]

Does the M&P 45s seem to have less issues or are they across the board? Thanks

[Oscar 319]

I have broken a couple of mag base plates on my MP45 mags. Definitely not as durable as Glock mags.

Mag plates, however, are cheap and easy to replace. I just bought a bunch from Speed Shooter Specialties for $2 a piece.

[C4IGrant]

Does the M&P 45s seem to have less issues or are they across the board? Thanks

The M&P's in 45 and 40 are probably the most reliable. Then again, I shoot a 9mm and don't have any issues that others have.


C4

[Ed L.]

Just as an FYI, per S&W, mag springs should be changed out every 3,000rds.

Understood, but these issues happened before I reached the 4000 round mark, and those 4000 rounds fired were distributed through about 10 magazines.

[C4IGrant]

Understood, but these issues happened before I reached the 4000 round mark, and those 4000 rounds fired were distributed through about 10 magazines.

Roger that. Mag springs also wear out just sitting the in the mag (especially if they are kept loaded). So they have round count AND time span.


C4

[Jay Cunningham]

It also failed to go fully into battery several times with a full mag in the first 500-600 rounds. The trigger was terrible.

I had the same issues with my M&P45. Sometimes the magazines would not drop free either, which I thought was odd.

[Jay Cunningham]

While we are on the subject of dry firing, we all realize that dry firing is generally bad for all pistols made right??? This is why they invented snap caps.

G-Locks are designed to be dry fired - you can't field strip one unless you dry fire it.

[Apollo11]

Can anyone confirm the appx date the Revision 5 strikers were phased in?

Are they identified by the silver color?