Winchester Model 12 Receiver Extension

TurnsignalJ

May 05, 2018 02:47

I recently purchased a receiver extension for a Winchester Model 12, 12 ga. I want to use it on an extra barrel. I cannot get the marks on the extension and the barrel to line-up. Do I need to get shims? It goes 3/4 of a turn past the mark.

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  fordsix

  May 05, 2018 06:48

  there are about 8 differnt adjustment rings best to send it out to pro

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  BT99

  May 05, 2018 13:40

  Take some off the shoulder of the barrel to allow the extension to
  turn on 1/4 turn farther.

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  MIKE WISKEY

  May 06, 2018 04:15

  Winchester m-12's have never been 'plug & play'. If you want an extra barrel it will be custom fit all the way. Don't forget the 'barrel chamber ring', this must be custom fit to EACH barrel (just because it works ok with one barrel don't mean it will work with the other).

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