It's pretty common for someone to come here asking about parts. Things break or are difficult to put together or maybe have a function that needs further explanation. Because we're not all gunsmiths, the names of many of the parts are unknown. So, we make up names. "That thingy in front of the trigger" or "The part on the back" or "The exjector is not moving correctly." Whatever we call it, we all need some common ground to help each other effectively.

Therefore, I decided to put together these pics. I have tried to identify all the parts commonly talked about. You will notice that some numbers are missing from the sequence. That is because I tried to number the parts the same way S&W numbered them in their exploded diagram and some parts are hidden inside and can't be seen. No need to list them here.

Also, there are numbers that go beyond the parts list. I've decided to include some nomenclature that is either a part S&W didn't identify or a feature commonly talked about.

If I've missed something or something is incorrect, please tell me. I'll correct or add whatever is necessary to make this a quality reference.

Enough babble, here's the pics:







1. Front Sight
2. Slide
3. Extractor Pin
6. Striker Block
7. Extractor
9. Rear Sight
10. Striker
11. End Cap
12. Barrel
13. Recoil Guide Rod and Spring
14. Takedown Lever
15. Locking Block
16. Slide Stop
17. Trigger
18. Sear Housing Block
19. Locking Block/Sear Housing Block Coil Pin
20. Frame
21. Trigger Headed Pin
22. Magazine Catch
23. Frame Tool
24. Grip Strap.
25. Frame Block (this is where the thumb safety would be if you had one)
26. Cocking Serrations
27. Accessory Rail
28. Sear
29. Trigger Bar (it should be noted that S&W considers this and the trigger as one assembly)
30. Sear Disconnect Lever
31. Magazine Disconnect Lever (not all M&Ps have this)
32. Trigger Return Spring
33. Ejector


This is a S&W M&P .40S&W Full Size in the pictures. The caliber is irrelevant because all M&Ps, except the Shield, have these same parts. I don't have a Shield so, cannot take pictures of it.

The full size .45 in addition to #26 (Cocking Serrations) has Forward Cocking Serrations near the muzzle.


There's more to the M&P than just the gun though. There is also the magazine so:

A. Magazine Tube
B. Magazine Butt Plate
C. Magazine Butt Plate Catch
D. Follower
E. Magazine Spring

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Freedom isn't free.

Rastoff,

Great work, thanks.......

Good Job!!!

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Retired Marine Gunny

Base pad/plate retainer

How about a base plate catch since it performs that function in both versions of magazines.

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Minimize the variables

I like Base Plate Retainer. So it shall be.

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Freedom isn't free.

I see the number 33 in the photo on the ejector, but no number 33 in the parts list.

Let me also say thanks for the effort to put this together!

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MP40FS,MP40C,MP22
NRA,ISRA

Well done!

It's unfortunate that S&W doesn't provide an exploded view and parts list in their owner's manuals; doing so used to be common practice with guns and tools. Probably part of the "No User-Servicable Parts Inside" movement.

There needs to be some part officially called the "Thingammy." Every complex device has one; you hear people talk about them all the time.

Likewise, the "Gizmo."

i'll do a search on how to save this thread. any info on blueprints or info on complete parts breakdown. thanks for any info or locations.

Rastoff,
Any way to make your post a PDF? I'm not very computer literate (at least not enough to do something like I'm asking). It would be nice to print it out.

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Minimize the variables

Thanks Rastoff & Randy! This should be a Sticky. You know that when someone wants to look at it it'll be on page 176 by then. (Probably me, lol)

I noticed that you forgot to number the doohickey & the @#*%$.

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Former USN, Retired US Army

Thanks for the catch. I fixed it.



Bkreutz,
Yes, I can make it into a PDF. Send me an email and I'll respond with a PDF for you: [email protected]
Be sure to include your screen name and what you want. I get lots of emails and need to be sure I know what you're asking for.

Give me a little time to work on it. I made one right quick, but the pics are too small. Don't worry though, I'll get 'er done.

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Freedom isn't free.

Request sent, take your time and thanks

I was able to copy and save to a word document just for safe keeping! (with pics)

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Criminals don't register guns.

Rastoff, excellant work! I agree it needs to be a sticky and a PDF too. Many will benefit from your labors including me. Thanks.

Rastoff, thank you for your time and efforts on this. I also think it would be great to have it as a sticky for the same reasons mentioned above.

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"Expect the unexpected."

The PDF is built. Just drop me an email and I'll send it to you.

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Freedom isn't free.

Thanks.. I needed it. Already made a blunder on a term yesterday and I prefer to use the correct term! LOL

Request sent

This is excellence work!!!

Thank you.

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MP 9 PRO, MP 9 FS, 9MM SHIELD

Outstanding -- thanks for your effort. I think this thread ought to be "saved" up top for easy reference. Not sure how that happens.

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M&P-9FS,Shield40,642,32ColtPPS

Dude this is sweet! Thank you!

Rastoff, sent you a PM.

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Ret LE Firearms inst & armorer

Good job - should be a sticky!

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Marty 4513TSW 13-1 642 60-10

Thanks for all the comments. I have requested this thread be added to the Notable Thread Index you'll see at the top of the M&P Pistol forum. Hopefully, handejector will add it there.

I have sent the PDF to a number of people. I hope it helps.

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Freedom isn't free.

Hey Rastoff, could I get a copy of that PDF? I'll send you a PM. Thanks!

What would be ideal is that the PDF gets posted as a "sticky" so that it could be downloaded directly from the site. I'm thinking that the top of the "M&P" section would be the place. It's only a 260Kb file so it's not all that big. I appreciate your work on doing this and sending me the file but you shouldn't be bombarded with requests to send the file. (unless you want to, in that case, "never mind", to quote Rosanne Rosanna Danna ) That way your time would be freed up for even more interesting projects.

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Minimize the variables

Here we go. A somewhat remedy.

https://db.tt/uLnQIufu

now it can just be downloaded straight from here. Hope that is ok with you, Rastoff.

I probably should have put the little copyright thing on it, but that's OK with me and it will save my inbox.

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Freedom isn't free.

I can take it down if you'd like. Just figured I could help with that.

Cool great work. Needs to be a sticky for sure.

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M&P15,9MM,M66,22-A,Glock 30SF

Rastoff, thanks for sending me the file. Great info there!

Rastoff, That's a useful parts breakdown. Very high quality post.

Great photos. Now I need the same for M&P 22. Any one have that.? It would be appreciated.

Thanks Louchia.

If I had an M&P .22, I would do this for that as well. Alas, I do not have one.

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Freedom isn't free.

great info, thanks for posting.

Many thanks for a great helping hand

Thanks, for sharing, Great job.

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In Memory Of The WARRIOR's

Here's a Brownell's M&P Schematic I bookmarked and refer to as well, which links back to parts (from Brownell's, of course). Helpful when looking for part #'s...

MP (Semi-Auto) | World's Largest Supplier of Firearm Accessories, Gun Parts and Gunsmithing Tools - BROWNELLS]


Here's a M&P Parts List PDF for all models, as well (attached)

Attached Files

M&P_PistolPartsList_Retail.pdf (1.09 MB, 277 views)

Thanks for that link 78Staff. Here's the diagram:


These exploded diagrams are great. They show all the parts. The reason I posted the pics the way I did was to show the parts as they look on the gun. It's easier for some to find them by looking at the already assembled gun.

I did use the above to update the nomenclature for two parts in the magazine. The OP has been modified to show the correct names.

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Freedom isn't free.

Bear in mind when using older diagrams, even when used with permission of the manufacturer, you may not be seeing the most current revisions of some parts & assemblies.

For example, in the linked diagram it appears the "standard" ILS locking block and the then-optional no-lock (ILS) sear housing blocks are shown, and the thumb safety version isn't shown. There came a point, when S&W was being deluged for requests for the thumb safety option, that they decided to make the thumb safety sear housing block the "standard" assembly. That way it could be used for both models, with & without thumb safeties. The ILS SHB is still available, last I heard, as special order.

Also, the original MA-compliant sear housing block, with its larger sear plunger and spring, became the "standard" (replacing the original SHB with its much smaller plunger & spring). Since there are a lot of the original M&P's, with the original SHB's, out there in the field, armorers are taught to recognize the differences so they can service and support both types.

Another revision not visible in the diagram is the new striker design, which started being incrementally incorporated into production sometime back in 2010, as I recall. It required a change in the spring keeper, going from the small 2-piece design to a 1-piece design (with an open space facing upward when installed).






The change from the 2 separate keepers to the single keeper was because of the design change to the striker.


More recently, the firing pin safety block (plunger) spring and its separate spring plate have been revised to make them a 1-piece assembly when shipped.

That was a welcome change, as the spring plate acquired the nickname "UFO" early on when it often went sailing through the room while an armorer student was trying to hold it properly positioned over the spring while replacing the rear sight base.

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Ret LE Firearms inst & armorer

nice job Rastoff, you put a lot of effort into this, appreciate you, thanks.

Nice job! Thank you for posting it!

Ok, all of the M&Ps that I have worked on have a plastic plate that goes on top of the striker safety spring. I took one apart last week to change the sights for a customer and the plate was broken in half. I ordered some new ones and the plates that they sent me are metal with no little nub on them to attach the spring to.
They are also a pain in the rear to try to center in the hole to get the sight back on.
Is this possibly the wrong part? Has anyone else run across this problem?

It could be the wrong part. I've never seen that. I've only seen the plastic one with the button in the middle.

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Freedom isn't free.

My 9c has the metal disc with no nub. The earlier versions of the M&P's had this. Later on Smith came out with the plastic disc with the nub to attach the spring. Same spring, just a different cap.

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Randy

Due to the Photobucket conundrum I have updated the pictures in the OP. Please let me know if they don't work for you and I'll fix it.

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Freedom isn't free.

Attached is the PDF for those that want it.

Attached Files

Parts Identification.pdf (672.0 KB, 131 views)

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Freedom isn't free.

There's more to the M&P than just the gun though. There is also the magazine so:

A. Magazine Tube
B. Magazine Butt Plate
C. Magazine Butt Plate Catch
D. Follower
E. Magazine Spring[/QUOTE]

Isn't that the "clip"

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DAV Life Member

Thanks for the parts breakdown! I made a file for myself from your pics, kudos. Cut and paste is our friend!!
Also wanted to share a link that may prove helpful to others following your lead, have a look! (um, they aren't exactly free tho)
TekMat - World's Most Advanced, Durable, and Best Selling Gun Cleaning Mat

New 2021 M&P 40 Perfornance Center 5" user here. Again thanks for this great info. Curious - My 40 does not have the disconnect lever - 31.

Since you say your info is also a M&P 40 full size, did that change?

Thank you Rastoff for your hard work. I am so glad I found this. This is just another example of the knowledge and expertise of many of the members here and why this is such a great forum.