The trigger system allows shooter to select from 3 different settings.
  • Safe Mode: Firearm will not fire.
  • Semi-Automatic Mode : When the trigger is pulled, the firearm will fire.
  • ECHO Mode: Firearm will fire when the trigger is pulled and will fire again after the trigger is released.

*We are unable to ship the Echo Triggers to CA, CT, DC, FL, HI, IA, MD, NJ, NY, RI, and WA

FOST 4150

Retail: $479.99
Price: $399.99
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Availability: Out Of Stock / Not Available For Back Orders
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The ECHO trigger is designed with safety being the utmost priority. When the Shooter is in the ECHO mode and depresses the trigger one round if fires, if the target moves, the shootER can move the selector to the safe position and the second round will NOT fire upon release.

The Echo Trigger has several distinct features:

  • Patented design that gained the ATF Approval (Patent#US 8,820,211 B1)
  • Drop-in design technology for the AR-15 platform (Licensed through Mossberg)
  • Technology licensed through HIPERFIRE inside the ECHO trigger
  • Light, clean, and crisp pull in Semi-Automatic Mode
  • The Echo trigger is packed full of cutting edge technology
  • Reliable function in Echo Mode