Description

100-025-999WB
AR-15 AR II Echo Drop-In Binary Trigger
Style: Binary

Description
The Echo AR-II Trigger is an ATF approved trigger that allows for fast follow up shots for great fun at the range.
The Echo AR-II Trigger allows the shooter to select from 3 different settings:

- Safe Mode: Firearm will not fire.
- Semi-Automatic Mode: Firearm fires when trigger is pulled.
- Echo Mode: Firearm fires when trigger is pulled and also when trigger is released.

The Echo AR-II Trigger is designed with safety being the utmost priority. When the shooter is in the Echo Mode and depresses the trigger one round is fired, if the target moves, the shooter can move the selector to the safe position and a second round will not fire upon release.

- PATENTED Design that gained ATF Approval (Patent # US 8,820,211 B1)
- Technology licensed through HIPERFIRE inside the Echo Trigger
- Light, clean, and crisp pull in Semi-Automatic Mode
- The Echo AR-II Trigger is packed full of cutting edge technology
- Reliable function in Echo Mode
- You will need a full auto bolt carrier in your firearm for the Echo AR-II to function

The Echo AR-II Trigger is for many of the AR-15 platforms but not all. The Echo AR-II Trigger NO LONGER comes with a stripped carrier with gas key. Customers made it very clear that they did not want to deal with a proprietary carrier. FosTecH's team of engineers developed the Echo AR-II so that it did not need that proprietary carrier.

SKU#: 4150FTECHO

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Comments (8)

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Price is now $449 so it's $399 for me after NDJ...

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Can't seem to stack coupon codes as post suggest

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Same problems with mine (PSA AR pistol w Brace) : overgased.
It destroyed the plastic part of my buffer in less than 200 rounds.
PSA sent me a new one (for free) then I add an adjustable gas block (Odin work) and everything run perfectly now.
The trigger is a lot of fun but cost you some $$$ in ammo..

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Just bought mine 9 days ago for $391 shipped! I'm not sure on the code but it was [mdw]? Maybe?

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Franklin BFS III for your DI mid gas platforms, paired with a T2 buffer, flawless with trigger control and $60 cheaper elsewhere. Fostech effed their base with long delays to prepaid deliveries and operated outside of ATF oversight. I'm still not sure if this comes with a letter of compliance as the Franklin does.

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It does have it's own letter of compliance. Source: I own 3 of them. All 3 came with a copy of that letter.

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I have this trigger installed in a CMMG MK4 with 11 inch barrel. These short barreled rifles are notoriously over gassed, had to add a very heavy buffer to get it to work.
Works OK, thought something was wrong with it at first, what they don't tell you is that you can't squeeze the trigger like you're trained too. If you do it will act stupid, you have to give it a quick solid pull & release.

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That is correct. It's a minor hang up and only happens in echo mode. You'll need to pull it back slightly more I echo mode so it will engage that second disconnect. Within 3 mags I had it down and can stack 2rnds about 1inch apart at 100yrds. This trigger will take some learning, but once you got it down. It becomes really easy to shoot.

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