Gunsmithing Which AR buffer and spring do I use?

[ERdept]

My set-up is a Magpull collapsable stock, and 16 inch LWRC upper.

I have the short buffer and the standard buffer.

I have the short recoil spring and the standard length recoil spring.

Which combo do I use?

 

[Brain]

Re: Which AR buffer and spring do I use?

Depends on the length of the buffer tube.

If the tube is fixed stock length, use the long buffer and long spring. If the tube is collapsible length, use the short buffer and short spring.

I don't know what length tube the Magpul uses as I have no experience with it.

 

[ERdept]

Re: Which AR buffer and spring do I use?

The tube is about 7 inches long from threads to end

 

[427Cobra]

Re: Which AR buffer and spring do I use?

Long Long Short Short

 

[Brain]

Re: Which AR buffer and spring do I use?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ERdept</div><div class="ubbcode-body">The tube is about 7 inches long from threads to end </div></div>

Definitely short buffer and short spring.