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glock 20 for 21

Discussion in 'General Glocking' started by hawkes31, Feb 6, 2012.

  1. hawkes31

    hawkes31

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    thinking of trading my glock 20sf for a gen4 glock 21 .can you run a 10mm barrelin the gen4 21
     
  2. thedave8

    thedave8

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