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Fn five seven

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Old 06-30-2013, 05:59 PM   #1
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Default Fn five seven

Does anyone know if you can use the extension spring on the 10 round magazine. All reviews I see you can use it on the 20 round to make it 30. Would that work with the 10 round mag?

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Old 07-04-2013, 12:38 AM   #2
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If it is a ten round mag for use in states with 10 round capacity restrictions, it probably has some other block incorporated to prevent alteration to higher capacity. But I don't know for sure. The only mags I've seen in person were the standard mags.
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