4:19AK-47 trigger upgrade with the Echo AK-47 by FostechLegally Armed America69.7K viewsView & Download
1:37Fostech ECHO Binary Trigger for the AK 47 | BIG ISSUES?BlackLab Outdoors8.2K viewsView & Download
4:03Fostech Echo AK Trigger in KP9.. Needs some fine tuning stillWild West Virginia Outdoors962 viewsView & Download
4:57Part 3 How To: Fostech Echo 2 Installation into lowerThe Disgruntled Vet4.2K viewsView & Download
