Just get a AR-9 with fostech trigger

Ultimate NFA Nut Kicker? PSA AKV9 with Fostech Echo Trigger! HOLY COW!Подробнее

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Fostech Echo AR-II Binary Trigger mag dumpПодробнее

AR9 with Fostech Echo 2 Binary system.Подробнее

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FosTech ECHO AR-II Trigger with CMMG MKG-45 by a skilled operator for demonstration purposely only.Подробнее

Fostech echo sport trigger on a AR9 Spicks TacticalПодробнее

Fostech ECHO 2 vs Franklin Armory Gen 3 with 9MM Uppers: Will it binary?Подробнее

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AR-15 - How to get the Upper and Lower together with a FosTech Echo AR-II TriggerПодробнее

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