M&P 15-22 Safety alert from S&W

[Jboutfishn]

Gauge arrived yesterday. .0355

 

[cinnwalt]

I received my gauge, never got any kind of e-mail, no confo, no here it comes, nothin. I'm sure you over the water folks are ansy, but it appears that S&W are getting them there. Hang in there, hopefully the pain will end sooner than later. All the best.

 

[Jeppo]

My local RFD have been back in touch saying Sportsman gun centre said to send it back to them through him and they would deal with it. But if the guage is in the post I'd rather wait as I think mine is within spec. Sportsman will be my backup if the guage doesn't appear.

That makes sense to me. I haven't seen anyone comment that they found one out of spec yet. Mine passed with flying colors.

 

[micocyco]

I would like to hear the details on all the ones that fail, like what depth are they at ? as well as the serial prefix and date of manufacture. Seems Smith doesn't know what got out when ?

Been thinking about this myself, always been a S&W fan & I will check my rifle for them. But I wonder if this is not like an insurance policy , with the new ban & all. I'm sure this is a small expense to know if any stock 15-22's can auto fire.

 

[Namvet Dan]

15-22 Bolt Recall

I remember reading many years ago about the S&W M&P 15-22 having this problem but I never read that S&W had a safety recall for the problem.

Now S&W finally has a recall for it after all these years gone by. Sure enough my 15-22 I bought over 8 years ago is on the recall list. Looks like I will be calling S&W on Monday.

It would be good to know the depth specs then I could check my bolt myself with my tools.
Thanks for the recall notice.

3-23-2019 Update: Still haven't received my shipping label from S&W for return of my bolt for replacement. Not even an follow up email from S&W about it.

3-27-2019 Took delivery of my 15-22 on 3-2-19. Went to the range the following week and had many multiple discharges as described in the safety bulletin. That is pull the trigger and am second round fires as well. When I cleaned the weapon I noticed the forward pin on the trigger assembly had backed out enough to allow the assembly to move. Reseated the pin and assumed it might be related to the failure. I heard about the bulletin and called S&W 3-11-19. Still haven't received a mailer. I told the I wanted a replacement bolt since I had experienced one of the failures mentioned. Now I wish I'd asked for the gauge. I too would like the spec on the depth of the bolt recess so I could measure the recess and move on.

 

[cjt50]

3-27-2019 Took delivery of my 15-22 on 3-2-19. Went to the range the following week and had many multiple discharges as described in the safety bulletin. That is pull the trigger and am second round fires as well. When I cleaned the weapon I noticed the forward pin on the trigger assembly had backed out enough to allow the assembly to move. Reseated the pin and assumed it might be related to the failure. I heard about the bulletin and called S&W 3-11-19. Still haven't received a mailer. I told the I wanted a replacement bolt since I had experienced one of the failures mentioned. Now I wish I'd asked for the gauge. I too would like the spec on the depth of the bolt recess so I could measure the recess and move on.

The issue you were having is most likely related to the loose hammer pin you found. Broken J-pins allows the hammer to walk out of reciever.

On the mailer, usually they will send it via e-mail, at least that's how I always got mine. Check your "junk" e-mail folder, it might have found it's way in there.

 

[sgtsandman]

3-27-2019 Took delivery of my 15-22 on 3-2-19. Went to the range the following week and had many multiple discharges as described in the safety bulletin. That is pull the trigger and am second round fires as well. When I cleaned the weapon I noticed the forward pin on the trigger assembly had backed out enough to allow the assembly to move. Reseated the pin and assumed it might be related to the failure. I heard about the bulletin and called S&W 3-11-19. Still haven't received a mailer. I told the I wanted a replacement bolt since I had experienced one of the failures mentioned. Now I wish I'd asked for the gauge. I too would like the spec on the depth of the bolt recess so I could measure the recess and move on.

The gauge is .036". Everyone who has measured had gotten .042/.043". Those who have gotten the gauge, measured, and passed with the gauge all got those measurements.


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[Namvet Dan]

Thanks cjt50. I think you are right. I just measured the recess on my bolt at .042. Although no one knows for sure what the spec is, others who measured .042 seem to be having no issues. I think I'll just order the gauge to be sure. At least I did not experience any unwanted discharges when chambering a round. In any case I will not be chambering any rounds except downrange until I'm sure.

 

[Namvet Dan]

Thanks Sgtsandman. That clarifies what I was thinking. Now I can go back to the range and see if the hammer pin stays in place. There is enough leeway between .042 and .036 for me not to worry. This is a good reminder to us all about the importance of muzzle discipline and not trusting a weapon until we have used it and broken it in. Still won't chamber a round in the house.

 

[sgtsandman]

Thanks Sgtsandman. That clarifies what I was thinking. Now I can go back to the range and see if the hammer pin stays in place. There is enough leeway between .042 and .036 for me not to worry. This is a good reminder to us all about the importance of muzzle discipline and not trusting a weapon until we have used it and broken it in. Still won't chamber a round in the house.

As far as the pins, you could get those anti-walk pins with the bars and screws that lock the trigger and hammer pins together. They're cheap enough that I'm considering then for mine even though I'm not having a problem.


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[REARSPROCKET]

The gauge is .036". Everyone who has measured had gotten .042/.043". Those who have gotten the gauge, measured, and passed with the gauge all got those measurements.


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I think that .042 - .043 is the newer current bolt recess spec ? My Jan. 2014 P.C. HCExxxx measures .0385 which others like Iain also have measured on theirs. Really don't think the new spec needs to be so loose considering there is about a .005 chamfer on the chamber face of the barrel.

 

[sgtsandman]

I think that .042 - .043 is the newer current bolt recess spec ? My Jan. 2014 P.C. HCExxxx measures .0385 which others like Iain also have measured on theirs. Really don't think the new spec needs to be so loose considering there is about a .005 chamfer on the chamber face of the barrel.

It could be. As long as the measurement is .036", like the inspection gauge, or more I would think you'll be ok. I forget what the max is no one seems to be having an issue with that, just the minimum.


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[Hamster65]

Does anyone have the bolt face depth dimention / thickness of the gauge? Seems like an easy enough measurement for a Vernier caliper without waiting to order a gauge.

The gauge is free. I received an email from S&W on the recall and mine is one of the ones affected by it. I chose to order the gauge rather than sending my rifle in. Still waiting for it to arrive though.
I don't use that one all that much anyway so, it's perfectly happy being a safe queen till it gets here.

 

[bamashooter]

As far as the pins, you could get those anti-walk pins with the bars and screws that lock the trigger and hammer pins together. They're cheap enough that I'm considering then for mine even though I'm not having a problem.


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If you get pins make sure it's the longer ones for a 15-22 and not the ones specific for an AR.

CMC Smith & Wesson M&P Anti-Walk Pin Kit 15-22 22LR

or

https://www.primaryarms.com/kns-non...pins-for-s-and-w-m-and-p15-22-mp15-22nrthpbk2

 

[shotguntom]

The gauge is free. I received an email from S&W on the recall and mine is one of the ones affected by it. I chose to order the gauge rather than sending my rifle in. Still waiting for it to arrive though.
I don't use that one all that much anyway so, it's perfectly happy being a safe queen till it gets here.

I called S&W yesterday. Its been 2 weeks since I ordered the gauge. My rifle is new and I really want to actually shoot the darn thing.
Customer service rep gave me a story about some glitch in the system. Told me it will be another week or Two before I will get it. 3-4 weeks for a little gauge?
Sorry, but that is BS.

 

[REARSPROCKET]

I would just use a digital caliper to measure it. You will get an actual measurement instead of the Go/No Go gauge. I used the gauge and saw it was a few thousands deeper than the gauge and then used the calipers to measure it at .0385. My caliper only reads in half thousands, Iain's measuring tool is much more precise.

 

[Iain]

My caliper only reads in half thousands, Iain's measuring tool is much more precise.

Wish I could afford something that measures that precisely Like everyone else here, I've only got a digital vernier reading to half a thou at home.

For the precise numbers, I cheated by using a CMM at work that cost the Company several hundreds of thousands of pounds

It was a nice change for the guys to measure something other than engine parts

Iain

 

[VaTom]

Received the gauge today. Ordered on March 12th. My 15-22 checks out ok with gauge flush on the bolt face.

HBU prefix serial number purchased in January of 2014.

Thanks to the OP for bringing this my attention.

 

[Grumpy Old Soldier]

S&W 15-22 gauge

I was thinking the same thing. I hope somebody will mic one when they receive it.

Got mine from S&W today. Measured 0.0355".

 

[shotguntom]

I took the advice given on the forum. Mine measured at 0.0395
I guess im good to go. Thanks once again to the great people on this forum.