M&P 15T Adjustable Buttstock Removal / QD Sling Swivel Attachement Point Inquiry

august242

august242

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Hello everyone ...


I have a really basic question that I am somewhat embarassed to ask, but I've figured that the dumbest question is the one that isn't asked, so I'll go ahead and ask it here:


01. How do I go about removing the Smith & Wesson M&P 15T adjustable buttstock from the buffertube?


The reason being is that I just acquired a special buttstock designed by FAB Defense in Israel (via The Mako Group) and was wanting to switch the factory stock out with this aftermarket version.


I noticed a small springscrew / nub at the base of the S&W adjustable buttstock adjustment lever, but when I go to turn it, it just spins freely. (No loosening of the screw whatsoever.) And from what I can tell, there appears to be a small roll pin in there. Do I need to remove that (the roll pin) in order to remove the buttstock (and how would I bump out the roll pin)?


Is there a diagram or a video online that can show me how it's done?


Plus, I am kind of wondering how the new FAB Defense adjustable buttstock goes on as I don't see a similar pin extending from the base of the stock like that on the S&W M&P 15T buttstock. The spring on the FAB Defense stock is hidded beneath an adjustment lever.


Lastly, here is a link for an image of the new buttstock that I acquired (for the sake of visual comparison):


M4/AR-15 Survival Buttstock w/Builtâ??in Magazine Carrier - GL-MAG

_______________


02. Lastly, on somewhat of a side note here, with regard to the holes cut out on the S&W M&P 15T picatinny rails (on both the right and left sides), will those holes accept a Quick Deployment (QD) Sling Swivel placed / secured within them? Is that what those holes are for or are they used as a secondary affixation point for additional rail-mounted accessories? Or are those holes incorporated into the picatinny rail's design as part of a weight reduction element?


The reason why I am inquiring about the apparent QD holes on the S&W picatinny rail, is that I'm interested in the new MagpulMS4Dual QD - Multi-Mission Sling which has a pair of QD swivels on it. I was wondering if the swivels will fit into the picatinny rail holes that I inquired about above, or if I'll need to invest in a QD mount that will affix to the rail itself to accept the QD swivels themselves.


Here is an image of the new Magpul MS4 Dual QD sling with a relatively good closeup of the QD swivel on it:

http://palmettostatearmory.com/medi.../9df78eab33525d08d6e5fb8d27136e95/m/s/ms4.jpg


Thank you for taking the time to peruse my inquiry here on the forum.I look forward to your replies / answers to the questions that I posited for others here to analyze.


Take care and be well.

Sincerely,

august242

:)
 
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August, for question #1, it is pretty simple. Push the lever and extend your stock to the full length. From there, instead of pushing up on the lever, pull down on the back of the lever and then slide the stock off.

AR15 Collapsable Stock Removal - YouTube

For question #2, I am not sure. I do not think those holes are for installing a QD socket. I think they are for weight reduction and cooling, but I may be wrong. I don't have one of those rails.
 
Link wont come up for my phone, but if you want a single-point sling attachment, check out the MI attachments...i got the 15T, and thats what i used...doesnt require removal of the castle nut and works great...
 
Thanks cyphertext ...

I'll check out the video link that you provided.

Hopefully I'll be able to remove it as easily as you described it to be. ;)

I was just worried that if I pulled the lever in the opposite direction, that it'd break off.

__________

As for the second question with regard to the holes in the picatinny rail, I used a small dial caliper to measure the inside diameter of both the QD point on the FAB Defense buttstock as well as the series of five holes running the length of the picatinny rail.

Each inner diameter measurement matches perfectly. :D

Now it is just a matter of someone here who has a QD swivel (and the same S&W M&P 15T picatinny rail) to see if the swivel will actually fit / couple into one of those holes (and whether or not it is a secure hold).


I wonder if there is an "across-the-board" industry wide standard for the QD swivels themselves.

You know, like each QD swivel and coupler needs to be a certain millimeter in diameter by a certain millimeter in length with " x " number of little ball bearings on the device to be considered a universial QD swivel. That way, one manufacturer's device will fit another's and vice versa.

(Just kind of throwing some stream-of-consciousness ideas out here with regard to this.)

OK, I'm off to watch the video now.

Thanks again cyphertext ... have a good night.

Take care,

august242 :)
 
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BadKarmaZeroSix ...


Let me know when you are able to find the link for the MI attachments.

Are they a QD swivel attachment point that affixes to the buffer tube, or more so a bracket point / slot that would accept a spring clip / spring carabiner style clip to it?


Kind of like the following:


01. Buffer tube attachment plate:

AR15/M4 Dual Sling Adaptor End Plate - TSA



02. Picatinny rail attachment point:

Picatinny Sling Attachment Point - SLA



03. Quick Detachment Swivel and Swivel Mount (for affixation to a picatinny rail):

Sling Mount for Tactical Rails with Quick Detach (QD) Swivel
 
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Update

OK, somewhat of an update here ...

I managed to remove the original S&W buttstock and replace it with the new FAB Defense buttstock. A special nod of gratitude going out to fellow forum member "cyphertext" for his assistance (thanks for the video link).

However, it's still a "no-go" with regard to anyone out here on the forums who knows whether or not the holes on the left and right picatinny rails on the Smith and Wesson "Military and Police" 15T AR-15 are there for accepting a quick detachment (QD) swivel.

I noticed that there are three (3) of these holes on the right / left picatinny rails and are evenly spaced down the length of the rail.

If anyone having a similar model (i.e. the M&P 15T) and a spare QD swivel could possibly check to confirm whether or not a QD swivel will fit snugly within one of the picatinny holes that I mentioned above, it would be greatly appreciated.

Thanks for your time.

Best wishes,

august242

:)
 
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August, can you bump up your font size a bit, these old eyes are having a tough time reading your posts. :D
 
Correction to my last, but the QD swivel DOES fit inside the holes along the rails. I went back and tried it and it worked
 
THAT'S WHAT I WANNA HEAR!

:D

Thanks ...

One final question:

Do the QD swivels remain locked into the rail holes until you depress the detach button (i.e. is it a secure hold)?

Lastly, when the QD swivel is in the hole along the picatinny rail, does it allow for it to freespin or do the small picatinny ridges hold the QD swivel steadfast so that it cannot spin 360 degrees?

I could see where the QD swivel metal loop *could* possibly get lodged inbetween those picatinny ridges and then move only a small amount.

Just mere curiosity on my part with regard to the amount of movement (degrees clockwise / counterclockwise).

Let me know what transpires on the amount of rotation please.

Thanks again for your help "ihaschzbrgr" ... you've be a great help.

august242

;)
 
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Bkreutz ...


I hope that you are aware that most Internet browsers have an enlarge the screen display (with which to view tiny script in a much larger format):

__________


01. If you're using Firefox, just go to:

VIEW -> ZOOM -> ZOOM IN

__________


02. If you're using Internet Explorer, just go to:

VIEW -> ZOOM (100%) -> Select your Zoom Level (or use the CTRL + and CTRL - combo to zoom in or out).

__________


03. If you're using Google Chrome, just go to:

the little = icon in the upper right corner of the browser, left click on it, scroll down to the word ZOOM and then use the + or - signs on either side of the current visual size level (i.e. 100%) to increase or decrease the size of the font / screen size.

__________

Hope this info was of assistance to you.

Take care,

august242
 
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august242 said:
THAT'S WHAT I WANNA HEAR!

:D

Thanks ...

One final question:

Do the QD swivels remain locked into the rail holes until you depress the detach button (i.e. is it a secure hold)?

Lastly, when the QD swivel is in the hole along the picatinny rail, does it allow for it to freespin or do the small picatinny ridges hold the QD swivel steadfast so that it cannot spin 360 degrees?

I could see where the QD swivel metal loop *could* possibly get lodged inbetween those picatinny ridges and then move only a small amount.

Just mere curiosity on my part with regard to the amount of movement (degrees clockwise / counterclockwise).

Let me know what transpires on the amount of rotation please.

Thanks again for your help "ihaschzbrgr" ... you've be a great help.

august242

;)
Click to expand...

Yes, the QD swivel does hold securely
You only have a limited range of swivel (depending on what angle you mounted it)
I am using this as my QD swivel and your results may vary Amazon.com : Midwest Industries Quick Detach Sling Swivel Heavy Duty Flush Push Button : Gun Swivels : Sports & Outdoors@@AMEPARAM@@http://ecx.images-amazon.com/images/I/41WFVt%2BUMYL.@@AMEPARAM@@41WFVt%2BUMYL
 
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