M&P tatical reload issue

Earlier production M&P 9mm magazines - the blued ones - would accept 10 rounds easily, and could be locked in place with the slide closed.
The newer ones - black coating over bluing - use a different follower which makes inserting the first round more difficult, and barely accept the 10th round. Latching one in place with the slide closed is a challenge.
Trimming the follower legs slightly allows 10 rounds to be loaded without difficulty, and permits a loaded magazine to be seated and latched in place when the slide is closed.
Can't see the point in cutting springs.
 
4n2t0 said:
Simple, just trimming the follower doesn't always completely solve the problem.
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When would it not? The problem begins with the follower bottoming on the springs as they compress. Trimming the follower solves this issue. Cutting the springs just introduces the problem of light mag springs. Trim the bottom of the follower is the solution.

Take Care

Bob
 
luckey said:
Hi Guys, an update for anyone in the future.

After some testing, I have identified the cause and fix. It's the spring. The root cause is that the spring in the 10-rd mag is the same as the 17-rd which is too long. once the 10th round in, there is no room for any compression. So when there is already one round in the chamber and slam a mag in, it will either knock the round in the chamber off, or moving the slide back a bit, or mag won't seat properly if not slam hard enough(I bruised my palm when trying). Once I cut the spring by 3 full coil, everything is fine now in all 7 mags I have.
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How is inserting a magazine doing anything to a round in the chamber, and how is a forward sloping magazine pushing a locked slide backward? I'm really confused here, and I shouldn't be - I've put enough rounds through an M&P to wear out mag springs (2 full sets of 8, ie 2 for each mag I own) and followers (a full set). Shoot a couple of thousand rounds through the pistol, and let us know how that clipped spring thing works out. As far as bruising goes, if you're bruising yourself, you're doing it wrong.
 
enefgee said:
How is inserting a magazine doing anything to a round in the chamber, and how is a forward sloping magazine pushing a locked slide backward?
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All of that is physically impossible, I don't know why he keeps posting this. A chambered round has no "wiggle room" and cannot move unless you physically pull the slide back.

As already mentioned numerous times in this thread, just trim your follower a bit.
 
In my case, I did trim the follower first and tested with NO LUCK as even with only 9 rounds in, I had the problem from time to time which led me to cut the springs. I didn't want to cut them at first as it seems to be more intrusive, but in the end it fixes the problem.
 
What you said actually hold truth. What I saw was that, even after I trimmed the follower, if I slam the mag in with 9 or 10 rounds, the slide will move back just a little bit which disengaged the trigger.
that's what led me believe the spring didn't have any more room to compress and hit something as it goes in. Once I cut the spring, the problem was gone.

-[Crosshair]- said:
All of that is physically impossible, I don't know why he keeps posting this. A chambered round has no "wiggle room" and cannot move unless you physically pull the slide back.

As already mentioned numerous times in this thread, just trim your follower a bit.
Click to expand...
 
4n2t0 said:
Tada!
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tada the followers are the problem Lad not the springs. You simply have to trim the follower back until the mag functions as it should. S&W did not change the springs in their mags they changed the followers. BTW if you want to cut springs fill your boots. Nobody, other than your mommy cares.

Take Care

Bob
 
I wonder how long it is going to take For S&W to correct their 10 rd mag issue. Aside from ourselves California runs with a 10 rd limit and there are others States as well.

Take Care

Bob
 
Canuck44 said:
I wonder how long it is going to take For S&W to correct their 10 rd mag issue. Aside from ourselves California runs with a 10 rd limit and there are others States as well.

Take Care

Bob
Click to expand...

I have done some consulting work for a number of the companies. You might be surprised how few employees do any shooting. I suspect the 10 round mag and follower was designed on a CAD and went into production without anyone considering how easy it would be to load round #10 or if the mag would insert in a pistol with the slide closed.
 
Ganderite what you say is true but making profits for the company is or should be the common goal for all employees. Smith appears to have changed suppliers for the followers a few years back the the problem of loading 10 rds has been with us ever since. I am sure the company is aware of it. They just have done nothing about it. They may have decided the issue is not great enough to affect sales so why correct it.

Take Care

Bob
 
notsorichguy said:
Gee, then why does my 2.0 still do this?

I consider it a design feature.....
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It is not a feature, it's a failure. Your 2.0 has a detent to prevent the catch from dropping without significant force. Apparently yours doesn't work as advertised or the correcting simply didn't solve the problem either. The controls of a firearm should never do anything without the input of the user. A slide that auto forwards with normal force applied to the magazine(not slamming it!) is nothing to champion.
 
AB_blaster said:
It is not a feature, it's a failure. Your 2.0 has a detent to prevent the catch from dropping without significant force. Apparently yours doesn't work as advertised or the correcting simply didn't solve the problem either. The controls of a firearm should never do anything without the input of the user. A slide that auto forwards with normal force applied to the magazine(not slamming it!) is nothing to champion.
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Ah, there’s the rub..... all of my magazine fed pistols do this when the reload is “vigorously applied”... but they do not do this when a “standard” mag change is done.

Cheers
 
Wolf@TS said:
^^ This ^^ should fix your issue...



Yes, it could be considered a "tactical reload" or "reload with retention"... from the sport of IDPA (although the two are no longer differentiated) meaning the pistol is kept "hot" while the reload is preformed.
I'm not sure how your mags "activate" the slide release on loading but ok.... :rolleyes:
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If I slam a mag into my MP's with the slide locked the slide occasionally releases on its own. Pretty sure that is what he was getting at.
 
I wish all my guns would release the slide when I slammed my mag into the gun. Not sure why anyone who shoots action shooting would consider this anything but a feature. Use of 147 gr bullets will assist this feature as the bullet olgive has a better chance of hitting the slide stop.

Take Care

Bob
 
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