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Will this work in an extar ep9???? Or would u recommend the Franklin binary trigger? — 5 Answers

by Steven, from TN, United States Asked on February 26, 2020

Name Fostech Echo Sport AR-15 Binary Trigger (3.5)
$289.99 $208.99 Save 28%
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Answered by Armando R., Gear Expert, from IL, United States, on March 18, 2020

We cannot recommend any of the binary triggers systems for the Extar EP9. Both units use an AR bolt carrier and Franklin specifically states no polymer lowers for their trigger. My best recommendation would be to contact Extar directly to verify whether they recommend any of the binary triggers because compatibility information for anything that is not a standard AR lower receiver is lacking.

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Answered by miteywhitey, guest, from NC, United States, on April 20, 2020

BFS 3 trigger works in the EP9, this one does not. I own several of both and this one is the faster and more reliable trigger but pull is heavy and gritty.

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Answered by Raphie, member, from MI, United States, on July 14, 2020

That's nonsense i have a binary in my polymer lower it should work

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Answered by Freedom, member, from TN, United States, on May 21, 2022

No it will not, I have a extar and the bolt carrier is not cut wide enough to pass through.

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Answered by BadHabitZ, guest, from MS, United States, on December 13, 2021

EP Armory sales a binary trigger with enhanced lower parts kit for 225-250 I installed on my poly80 ar9 and it rocks out

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Last updated 2025-11-12 UTC.