M&P22 Broken Part - MP-Pistol Forum

M&P22 Broken Part

This is a discussion on M&P22 Broken Part within the MP Pistol Tech Help forums, part of the Smith & Wesson MP Forum category; In the above you can see the silver metal part just behind the slide lock, which fits beside the magazine in the assembled and loaded ...


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Old January 1st, 2016, 03:48 PM   #1
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Unhappy M&P22 Broken Part



In the above you can see the silver metal part just behind the slide lock, which fits beside the magazine in the assembled and loaded gun.

I recently had some problems with the fun failing to chamber a round sucessfully, which included some of the rounds being bent. I attributed this to a new type of ammo, wich had a flat front to the bullet, almost like a wad cutter. The gun has only had 7-800 rounds through it and has been working fine until now.

Eventually the slide would not return to battery. I unlocked the take down lever and removed the slide. The piece in the photo (what's the name of it btw? I can't find any label in a diagram) fell out. Checking the gun, I found the holes where 2 metal pins fit in to hold it in place. The piece itself was slightly twisted and the normal curve had opened up slightly. It had bent up enough to block the slide from returning to battery.

When the Canadian service centres reopen after New Year's I will speak to them as to what to do next.

Would anybody hazard a guess as to what caused this? Also, should I just replace (or have replaced) that part or is it likely that damage has happened inside the slide or elsewhere in the gun?
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Old January 1st, 2016, 06:54 PM   #2
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I don't have one of those but that looks like an ejector to me.
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Old January 2nd, 2016, 03:09 AM   #3
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That part is the Ejector, named for its purpose of ejecting the fired cartridge from the gun. It is not supposed to be removable from the frame; it is riveted to the fire control housing plate. It is normally angled like a hockey stick; the barrel has to be rotated to clear the Ejector when the barrel is being installed / removed. There is a clearance in the breech for the slide to cycle past it. One can only speculate as to why it resulted being bent then separated from the frame. Your photo shows it in place, yet you say it fell out. IF it has truly separated from the gun, you will have to send it S&W and have it repaired or the frame replaced.
Happy New Year !

Photos by permission: M&P Anatomy Series of Manuals






Caution: Pseudo-science or amateur diagrams / photographs may be embedded in this post.

Last edited by mp9werks; January 2nd, 2016 at 03:27 AM.
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Old January 6th, 2016, 04:57 PM   #4
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The photo I attached was not of the actual pistol, but from the net. It is indeed the ejector and the pins have come loose from the frame and the piece fallen out. It is also bent upward and slightly twisted. I'm sending it to the warranty center for repair/replacement.

It has had about 1,000 rounds through it. We were using Sellier & Bellot .22 LR SB Standard for the first time. It's a 40 grain cartridge with a flattened tip (less than a wad cutter). We had some feed problems and I'm wondering if the ammo miss feeding several times and getting jammed sideways up against the chamber or in the ejection port of the slide caused the problem.

The website for the ammo is:
Rimfire ammunition back ? Sellier & Bellot
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Old January 6th, 2016, 07:35 PM   #5
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22's are noted for being finicky about their ammo, each one has its own likes and dislikes, you usually have to try several different kinds of ammo to find one it likes, very few 22's will handle all the different brands and different bullet shapes, Remington is considered on of the worst for feeding problems, its bullet shape gets the blame.
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Old January 7th, 2016, 09:19 AM   #6
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An important part of the cartridge feed problem with the MP22 is the configuration of the feed ramp that was re-designed with the MP22 Compact. The feed ramp for the Compact is continuous, longer with a decreased angle to facilitate more reliable feeding.

In the top photo you can actually see where the nose of lead bullets have traced a line up and across the junction of the 2-piece barrel / barrel support. The inability to traverse this junction is the source of the feed-related problems.



Caution: Pseudo-science and amateur diagrams / photographs may be embedded in this post.
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Old January 7th, 2016, 01:40 PM   #7
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I have the full sized Walther M&P22 and honed the feed ramp, slightly lengthening it and the bottom edge of the chamber. It now feeds anything I throw in there.
This is the metal impregnated rubber Dremel point I used:

https://jet.com/product/detail/e1de6...DugaAtl_8P8HAQ



Last edited by agksimon; January 7th, 2016 at 02:19 PM.
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