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Thread: BCG firing pin excessive movement?

  1. #11
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    Quote Originally Posted by Eric D. View Post
    The rear bore of the carrier does limit how far forward the pin can move. The firing pin can move forward until the large diameter of its tail bottoms out in the rear bore.
    Remove the firing pin retainer and firing pin from a bolt group. Push the bolt reward into its locked position. I'm certain that if you look down through the back of the bolt carrier, you'll find that the tail of the bolt is the high point in the counter bore at the back. Are you still sure that the bolt carrier limits the forward movement of the firing pin?
    Last edited by MarkG; 04-12-14 at 08:35.

  2. #12
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    I was reading your post as 'tail of the *firing pin*' instead of 'tail of the *bolt*'...Facepalm. It didn't make sense because I was thinking "How can the firing pin's own tail limit its travel?" You are correct.

    Quote Originally Posted by MarkG View Post
    Remove the firing pin retainer and firing pin from a bolt group. Push the bolt reward into its locked position. I'm certain that if you look down through the back of the bolt carrier, you'll find that the tail of the bolt is the high point in the counter bore at the back. Are you still sure that the bolt carrier limits the forward movement of the firing pin?
    B.A.S. Mechanical Engineering Technology

  3. #13
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    Quote Originally Posted by Eric D. View Post
    I was reading your post as 'tail of the *firing pin*' instead of 'tail of the *bolt*'...Facepalm. It didn't make sense because I was thinking "How can the firing pin's own tail limit its travel?" You are correct.
    All good...

    Sent from my XT1056 using Tapatalk

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