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Fostech Echo Sport AR-15 Binary Trigger
$289.99 $259.99 Save 10%
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TomOH's Review of Fostech Echo Sport AR-15 Binary Trigger

The first one I got would not lock the selector switch in position and Fostech's support was rather pathetic - I don't have the feeling that there is a lot of QA going on or that they stand behind their products. After several calls with OP, I got a replacement. Installed it and it works as designed. Yes, pretty fast rate of fire, but a bumpfire stock is wayyy faster. This trigger is a rather useless gimmick and I would not invest in it again - maybe I would try a different binary trigger, but I doubt that I would buy Fostech again.
Pros:
  • easy installation
Cons:
  • Expensive
  • No support
  • Bad QA
Best Used for:
  • plinking
Would Recommend: No
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Last updated 2025-11-12 UTC.