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Fostech Echo Sport AR-15 Binary Trigger
$289.99 $259.49 Save 11%
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Most Helpful Positive Review fostech trigger
Get ready to spend a lot on ammo becsuse its that fun!!!!! Judt put it on fostech and let it rip you can mow some stuff down!!! Aint nobody gonna block your car or try yo break into your house after you fire of a few rounds with that beast!!!!
Most Helpful Negative Review Pay the extra and get the Fostech Gen II Echo Trigger
The good is, it is not a bad install and once installed it does work. What I do not like about it IMHO is the deal killer as far as buying another or recommending. The selector to go from semi to echo is inside the trigger well up against the frame and I subscribe to, "you do not put your finger ins...
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fostech echo sport trigger

by Beto, Verified Owner from TX, United States Written on August 16, 2025
If you ready to have fun and spend money on ammo I definitely recommend this trigger!
Would recommend: Yes
Was it helpful to you? Yes | No

works great on 10.3” barrel

by chris, from TX, United States Written on April 5, 2025
I don’t see why so many people are having trouble, maybe I got lucky and didn’t get a defected one? I got mine at a gun show and it was so good my cousin went back the next day to drop two hundred on it, yes it was hard to install but ran very smoothly in both semi and echo mode once properly seated.
Would recommend: Yes
Was it helpful to you? Yes | No

missing parts

by righttobarearmswv, Verified Owner from WV, United States Written on March 16, 2025
I got a demo sale or open box sale item, the crappy part was when I went to assemble it it’s missing the detent cap and detent spring I am having to order from foestech now… it was a good deal but they should put in the description it’s missing parts before they sale stuff. These triggers are awesome in my opinion with a Milita State Armory spring kit and bushing spend the extra 32 bucks you will be glad you did.
Would recommend: Yes
Was it helpful to you? Yes | No

Heavy Rough Trigger Poor Service

by Chuck, from TX, United States Written on January 14, 2025
I have both a sports and ar2 Fostech triggers. Both have over an 8# trigger pull. The finish work is horrible. But what is worse is their customer service…..they do not answer there phones and even sending emails to them response if gotten is slow. Franklin triggers are better route to go.
Pros:
  • None
Cons:
  • None
Would recommend: No
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Fostech EchoSport Binary Trigger

by Strato, Verified Owner from OH, United States Written on January 4, 2025
I purchased 2 Fostech EchoSport binary triggers. I looked at the video but it was dark so I looked at the instructions, which I thought was hard to follow. I made a mistake and the whole thing fell apart. Luckily, there weren't that many parts and I had the second one to look at. I was able to figure it out, put it back together and measured the trigger pull - between 9 and 10 lbs. I called customer service and was very pleased because she said that they would give me a shipping label for me to send it back. She also mentioned that by the ATF their trigger must be between 7 and 9 lbs. I probably won't send it back because I'm within tolerance. I went back online and found the perfect video on how to put the trigger in. Now I installed the second trigger in another AR15 and it went smoothly. In semi-auto no problems, but in Echo mode, letting off the trigger didn't drop the hammer. I removed the trigger, no problems, and installed it into another AR15, again no problems, except it still didn't work in Echo mode. I'm going to send it back to Optics Planet.
Would recommend: Yes
Was it helpful to you? Yes | No

Order a new trigger and get a used one!

by No one answered the phone, Verified Owner from TN, United States Written on December 19, 2024
I paid for a new Eco Sport trigger and received one that had extra staples on the package and the bag of parts was not centered from another person that had previously opened it. I opened the package today and noticed I’m missing a screw.
Would recommend: No
Was it helpful to you? Yes | No

It works without any issues!

by Luis Hinojosa, Verified Owner from TX, United States Written on December 5, 2024
The insulation took about 3 hours to do, because the YouTube videos from the manufacturer are horrible and did not do a good job actually instructing or explaining how to do the installation. Desert roads entertainment,
Militia state armory, and
David Muncy, had the best videos on YouTube that I found that actually explained how to install the trigger and to fix any kind of issues and this worked perfectly. I cannot stress enough. Only watch the videos from these 3 guys and do not watch The videos from the manufacturer on YouTube.
I am giddy with excitement because the trigger work so perfectly in my CMMG AR9.

I will buying another one doon to keep in my safe for my future build.
Would recommend: Yes
Was it helpful to you? Yes | No

High trigger pull

by Carlos, from TX, United States Written on December 5, 2024
Yes the trigger does operate and one can shoot fast in binary echo mode. However trigger pull weight is high and pretty gritty. I have three trigger one is a sports trigger an another is their Generation 2. I dislike their service center as they only reply by email and they they sate any work by you and using any other parts void the warranty.
Pros:
  • Yes they do fire rapidly
Cons:
  • Poor customer service
  • terrible for precision target shootin
Would recommend: No
Was it helpful to you? Yes | No

Binary Trigger

by Ddog, Verified Owner from PA, United States Written on November 21, 2024
Fantastic product! Speedy shipping. Great people to deal with!
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Fostech trigger

by Charlie, Verified Owner from OH, United States Written on November 11, 2024
I bought this, it never worked at all, never even got a chance to fire it , kept locking up. Took it to a gunsmith he couldn’t get it to work either. I tried contacting fostech several times with no answer.
Would recommend: No
Was it helpful to you? Yes | No
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