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Is AR-15 and AR-10 buffer assembly the same?

Discussion in 'Firearms Chat' started by lftd&pwrstrok'n, Jul 12, 2012.

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  1. lftd&pwrstrok'n

    lftd&pwrstrok'n ODT Junkie!

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    I have a DPMS LR-308 that I want to replace commercial buffer tube and stock w/ a Magpul CTR milspec buffer and stock? I have read that they are the same between the .223 and the .308 and I have read that they are different. Will the buffer tube for an AR-15 work w/ the buffer spring and buffer from the .308 or will everything need to be replaced? This is purely for cosmetics (to match my AR-15), but not a necessity, so no big deal either way. What say you?
     
  2. moreammo

    moreammo Frontiersman

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    i think they work either way... i don't know for sure but i have a .308 with an .223 buffer tube and it worked and works fine
     
  3. thegiantmidget

    thegiantmidget ODT Junkie!

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    I am thinking they're interchangeable because I used an AR10 stock and buffer tube on one of my AR15s last year with no problems. Somebody will come along to confirm soon.
     
  4. lftd&pwrstrok'n

    lftd&pwrstrok'n ODT Junkie!

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    This is what I was thinking too. But then I started looking for a stock and buffer tube assembly and found threads claiming that they would not work. I read through a few, but none of them were specific as to the why it wouldn't work (other than carbine vs rifle length issues). I am still new to the whole AR world and honestly have little idea what I am getting into when I try to do something; but that is how we learn...
     
  5. user 71

    user 71 ODT Junkie!

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    from what I know , ar-10s are not a common interchangeable platform like are-15s. some might work while others won't.
     
  6. AR556

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    I've heard they will not interchange with each other.
     
  7. lftd&pwrstrok'n

    lftd&pwrstrok'n ODT Junkie!

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    It looks like (from reading other forums on the subject) that the buffer and stock will work off an AR-15, but (and a big BUT) it needs a different buffer and spring. I know someone has traded these things out; whether out of not knowing better or just experimenting: where are you guys? LOL
     
  8. lftd&pwrstrok'n

    lftd&pwrstrok'n ODT Junkie!

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    Did you use the buffer and spring out of the .308 in the .223 tube or use the ones from the .223?
     
  9. strokin99

    strokin99 ODT Junkie!

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    I just changed mine. They are the same size. I replaced my commerical tube with a milspec and put a magpul ACS on it.
     
  10. lftd&pwrstrok'n

    lftd&pwrstrok'n ODT Junkie!

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    Did you use buffer and spring from the .308?
     
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