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Whats a two pin model 12?

Discussion in 'Shooting Related Threads' started by redhawk, Mar 28, 2010.

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  1. redhawk

    redhawk Member

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    Jan 29, 1998
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    please explain what a two pin model 12 is
     
  2. WS-1

    WS-1 Banned User Banned

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    Redhawk,

    Model 12s with vent ribs were built over a number of years. As the years went by, subtle changes in manufacturing occured. Vent ribs were initially designed to diffuse rising heat from the barrel and were thus, subject to ranges of temperature that could potentially expand or contract the metal rib. Because of that, ribs were mounted onto posts and were allowed to float. The ribs were affixed to the posts with 1, 2, or 3 small pins that were placed into holes which had been bored through both the rib and the post, usually at the end of the barrel closest to the breach. The pins kept the rib from sliding off the barrel. Thus, a "2 pin" gun was a gun with 2 pins holding the rib onto a post which was silver soldered to the barrel making the rib fast but flexible. Kit
    Thomas
     
  3. Hitapair

    Hitapair Active Member

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    The 2 pin is also frequently called the milled rib and is more desirable to most collectors than the 3 pin. Also sometimes called the "rough back" due to the knurling on the top of the receiver. The pins are near the middle of the barrel on the left side. If you have a 2 pin or 3 pin you'll see the pins in the post close to the middle of the barrel.
     
  4. eightbore

    eightbore Well-Known Member

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    The two pin was manufactured from about 1917 to 1960. It was made only in 12 gauge. A few two pin guns were built from old parts in the Custom Shop after 1960. Standard barrel lengths for two pin Model 12 were 30" and 26 3/4". It is possible that other lengths were made on special order, but I have never seen or heard of one. 26 3/4" two pin barrels in chokes other than WS1 and WS2 are very rare.
     
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