AR stock question

[Mgderf]

What's the difference between a "carbine" collapsible stock for an AR15 and a standard stock?

I assume the difference is in length of the buffer tube. I ordered a "carbine" stock before I realized it.

This is for an as yet to be determined caliber/length rifle.

 

[shooter521]

What's the difference between a "carbine" collapsible stock for an AR15 and a standard stock?

I assume the difference is in length of the buffer tube.

The collapsible stock does not share any parts in common with the fixed stock.

The collapsible stock assembly consists of a carbine receiver extension (aka "buffer tube"), carbine buffer & spring, castle nut and receiver endplate.

The fixed stock assembly consists of a rifle receiver extension, rifle buffer & spring, spacer (if it's an A2 stock) and screw.

 

[Mgderf]

I guess I needed to clarify my question. Does installing a "carbine" stock alter the bolt carrier needed? Are the "carbine" buffer springs the same "weight" as a fixed stock spring?

I know it's a n00b question. I'd just like to know if I install the "carbine" stock, will it make a difference in the other parts needed to complete a build? I'm hoping the carbine stock is nothing more than a shorter version.

 

[shooter521]

Does installing a "carbine" stock alter the bolt carrier needed?

No.

Are the "carbine" buffer springs the same "weight" as a fixed stock spring?

No.

 

[jtmarine1911]

With a collapsable buttstock you also need to watch out for the differences in mil-spec and commercial buffer tubes. Here is a link so I won't confuse you or myself trying to explain the differences. This really only applies if you are purchasing buffer tube assembly and buttstock seperate, it doesn't matter if both are included in a set.



http://magpul.commercev3.com/downloads/Receiver_Extension_Comparison.pdf

 

[homeless]

You do have to match your buffer with the setup you are running. *

 

[OEF5]

There is also a difference in "Mil Spec" and Commercial. They will not work with each other.

So if you ordered a Mil Spec stock, you need to have a Mil Spec buffer tube.

http://www.laruetactical.com/pics/BufferTube/CTR_Stock_Specs.jpg

The link isn't just for the CTR but Magpul has done a good job explaining the differences.