Replacing collapsible stock with fixed stock.

AR/M4 AR Technical Discussion
1

I am transferring from Texas to New York and I need to make my S&W M&P New York compliant. I am aware of the restrictions. I want to replace the stock first as I keep it extended when I shoot. Will I need a whole kit or just the stock? Any suggestions?

Any help would be appreciated.

2

You will need a lower receiver extension (buffer tube), a rifle length buffer and a rifle length spring. And last but not least a rifle type stock.

3

New York doesn’t allow pinned stocks?

4

wetidlejr,

I believe they do, but I want to save the old ones. I do not plan on living in New York after I retire. I am originally from NY, but I enjoy the Texas attitude and lifestyle.

5

NY law is pin stock… you can buy any stock you want like a magpul and pin it at whatever position you want as long as its pinned your good.

You don’t need a rifle stock and buffer if you don’t want to use it … you can just use your current buffer tube and pin the stock. Or if you rather a rifle fixed stock then the above poster is correct, rifle buffer, buffer tube and stock is required .

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6

I would just put your stock where you want it set it up in your drill press, drill it and drive in a taper pin. That way you can just tap it out and drive on.

7

I understand.

That is what I thought the NY law meant.

8

Usually you can buy these parts as a set for less money than buying them individually. If you want a shorter A1 length buttstock, there are new production units available.

9

Thanks for the help. I thought that drilling and pinning was a more permanent fix. Now that I know it is reversable, i will go that route.

Thanks again.

10

You will also need to shave off your bayonet lug and perm affix a muzzle device that is not classified as a flash suppersor.
I’m 100% confident my above listed info is correct.

11

Take a look at the original Vltor Rifle Modstock. It slides over a M4 Mil-spec receiver extension.

12

Take a look at the original Vltor Rifle Modstock. It slides over a M4 Mil-spec receiver extension.

13

That is pretty cool. I am going to have to post a picture of this once it is street legal in NY.

14

Thanks. I was aware of the bayonet lug and flash suppressor requirements. I have someone I work with that is going to help with the barrel adjustments.

15

The vltor Modstock uses a rifle type buffer tube not m4 tube this is what I have on my rifles in ny. It is so nice I do 't miss the m4 style stock.
Remove your current buffer tube set up ( don’t lose spring and detent for rear takedown pin) screw in and torque rifle buffer tube slide rifle stock on and screw down. That simple. If your current stock lock ring is staked on you will probably destroy it taking it off.
As noted above you need to remove bayonet lug and permanently fix a non flash suppressing muzzle device also.
FYI also know you can not bring any pistols to ny. Leave them behind. When you get a ny permit a dealer can ship them to a dealer in ny to transfer them to you.
Pistol permits take anywhere from 7-18 months to get here

16

Sorry, incorrect. The Modstock, pictured above, fits both a rifle or a carbine receiver extension. If you look at the picture, you can even see the link/lock piece that attaches to the stock and locks into one of the pin positions on the M4 extension.

Also, from Vltor themselves,

“Also includes a QD Sling Swivel and the needed hardware to mount to either the Rifle or Carbine/collapsible Receiver Extension.”

http://www.vltor.com/rifle-modstock.htm

Also, one of the Mods here, Militarymoron, reviewed the stock and describes the M4 receiver extension mounting,

http://www.militarymorons.com/weapons/ar.furniture.html

17

Where ya gonna be ?? I live Central NY Area,if your in the area give me a shout someday !!! I feel the pain,NY Blows,Oh well,I use and Like the A1 Stocks alot,I know Fulton Armory sell a decent one with the good butt plate,not the cheap plastic crappy one !!! I also have a Vltor EMOD Stock on one of my rifles,pinned of coarse !! It was funny one day,I had both my rifles leaning up against the wall after cleaning them and when I looked at them,they were the same dam length overall !!! After finding the “sweet” spot for the EMOD and pinning it,its the exact same length overall as my A1 !! Kinda funny I thought !!
http://www.fulton-armory.com/buttstockassemblygroupa1newblack.aspx

18

I am in the NYC area as well…

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19

When the Modstock is on an M4 extension it is considered “adjustable”.

From Vltor:
Product Description

The Rifle Length Modstock is a dual-purpose stock system which mounts to either a Carbine Collapsible Receiver Extension (MilSpec only) or the Rifle Length Receiver Extension. The stocks are offered in two sizes: M16A1 length and the 5/8-inch longer M16A2 length stock system.

When mounted to the Rifle Length receiver extension the stock will be the fixed at the A1 or A2 length. When mounted to the Carbine Receiver extension the Rifle Modstock can be adjusted for length by using the Carbine Receiver extension’s locking positions and the provided locking pin.

The Rifle Modstock is available in either the A1 length or the longer A2 version. All rifles use the same receiver extension tube; there are no MilSpec or “Commercial” diameters, the only difference is that the A2 rifle uses a 5/8” spacer and longer screw. The A2 length Rifle Modstock kit does not come with the longer screw or A2 spacer.

Note: When mounted to an adjustable receiver extension tube the Rifle Modstock is legally considered an adjustable stock!

20

Also remember, if pinning your stock, the pin can only go through one side. If it goes through both sides, during the '94 AWB, ATF considered that illegal since the pin could relativley easily be pushed through. I believe NY follows this.