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Fostech Echo Sport AR-15 Binary Trigger
List: $289.99 $208.99 Save 28%
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Carp's Review of Fostech Echo Sport AR-15 Binary Trigger

Picked this up to try. Install was fiddly, but not bad.
In doing function checks found that the trigger pull is extremely high. My Lyman trigger gauge stops at 12 lbs, and this is a heavier pull than that.
With this type of pull, i didn't even bother to see if I get the binary trigger response out of it with ammo.
I've attempted to contact Fostech to find out what might be the issue, or if it is defective out of the box, but have received no response.
Pros:
  • None
Cons:
  • Very heavy to unusable trigger pull
Would Recommend: No
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.