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Fostech Echo II/Gen 2 Trigger New Model , gas piston compatible! CAN USE YOUR M16 STYLE CARRIER
YES NEW MODEL- GEN 2 !!! Announced 07/17/17 You no longer need a proprietary bolt carrier with your FA bolt carrier!!! Works on GAS PISTON models.,Just Arrived!!!! Fostech Echo II Trigger.

Binary firing system Trigger BFS Hyperfire .222 5.56 300 blackout 9mm echo 2 second generation
10 in stock


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