Changing stock, do I need new buffer/spring?

[bobbyd3]

I was thinking of getting a different stock. Something like the Troy Battle CQB as I want some storage.

I live in NY so collapsable stocks are a no-no but as long as I pin it so that its fixed its ok.

Im just wondering if I have to get a new buffer tube and spring and all that?

Or does it depend on what stock I choose, as to what needs to be changed

 

[imku]

My understanding is that you do not need to replace the buffer tuber or spring, but make sure you buy a stock that matches your buffer tube whether it be milspec or commercial. I want to say the M&P15's come with the milspec. I'm sure someone will correct me if I'm wrong. My M&P15T has a milspec buffer tube and I replaced the stock with a Magpul ACS-L without changing the buffer tube or spring and have had no issues. Hope this helps!

 

[Kodiakco]

Correct, S&W uses a milspec sized receiver extension. You don't need to change buffer or spring.

This post brought to you by me and my Droid X, guess which one is smarter!

 

[jsimmons]

Just make sure the stock is "mil-spec", and it will fit your tube. You don't have to change any other parts.