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AR15.COM
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11/5/2008 7:04:58 PM EDT
I have 2 Smith and Wesson mp-15's.

Stocking up on parts.

Do I need the "RIFLE" length buffer spring or the "CARBINE" length?

Thanks for any help!
11/5/2008 7:09:25 PM EDT
[#1]
If your stocks are collapsible you need the carbine action spring.

There are S&W models that come with A2 stocks, those take rifle action springs.
11/5/2008 7:11:20 PM EDT
[#2]
Thanks very much!!!

Both are collapsible.

I greatly appreciate the help.  
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