Quantcast
  1. Sign up now and join over 35,000 northwest gun owners. It's quick, easy, and 100% free!

do i need a mil spec buffer tube?

Discussion in 'Rifle Discussion' started by Daniel Garris, Mar 22, 2011.

  1. Daniel Garris

    Daniel Garris vancouver w.a. Member

    Messages:
    27
    Likes Received:
    1
    hey guys im new to forums as im new to ar15s so i apologize if this is the wrong place for this but i have a question for some of you ar gurus.:huh:

    i want to do some upgrades to my armalite one of which is the BCG, and i read its good to get a mil spec buffer upgrade to go with that. these being the 2 parts that i have heard are most important. so my question is can i use a mil spec buffer assembly in a commercial tube, thanks daniel
     
  2. madcratebuilder

    madcratebuilder Ardenwald, OR Well-Known Member

    Messages:
    1,278
    Likes Received:
    175
    Yes, ID's are the same, OD's are different, commercial diameter 1.171 and MIL spec diameter 1.145

    magpulbuffertube.jpg
     
  3. Daniel Garris

    Daniel Garris vancouver w.a. Member

    Messages:
    27
    Likes Received:
    1
    so i can use a mil spec buffer because the commercial tube is bigger so it would fit in either one? am i understanding this right. and thanks for replying it helps alot.
     
  4. madcratebuilder

    madcratebuilder Ardenwald, OR Well-Known Member

    Messages:
    1,278
    Likes Received:
    175
    Yes, inside diameters are the same between mil-spec and commercial.
     
  5. RallySoob

    RallySoob Salem, OR Active Member

    Messages:
    1,041
    Likes Received:
    26
    in other words the buffer is the same size...no difference. You will be fine using your commercial buffer in a mil-spec buffer tube. GL
     
  6. DoubleTapDrew

    DoubleTapDrew Oregon Well-Known Member

    Messages:
    1,078
    Likes Received:
    377
    Buffers are the same size, the stocks are not. A mil-spec stock will not fit on a commercial buffer tube.
    More important is the buffer weight.

    Buffer%20Table.jpg