The Fostech Echo AR II Drop In Binary AR-15 Trigger transforms your AR-15 platform into a dual-action firing system, delivering a shot on both the pull and release of the trigger for increased shooting efficiency.
What you get
- Binary firing mode: fires one round on trigger pull and another on release
- Drop-in design for straightforward installation
- Enhanced firing rate without compromising control
- Includes all necessary pins, springs, and hardware
- Designed for compatibility with standard AR-15 lowers
Build and finish
The Fostech Echo AR II is precision-engineered in the U.S.A. to meet exacting tolerances. The trigger assembly is constructed from hardened steel, ensuring durability even under high round counts. The finish is a matte black oxide coating, which provides corrosion resistance and a low-profile appearance.
The trigger shoe features a smooth, curved design for comfortable operation, while the hammer and disconnector are heat-treated for enhanced longevity. All components are CNC-machined to ensure consistent performance and reliability.
This trigger system is designed to withstand the rigors of competitive shooting and tactical scenarios, making it a dependable upgrade for serious shooters.
Compatible platforms
- AR-15 rifles with standard lower receivers
- AR-15 pistols with compatible lowers
- Most mil-spec AR-15 builds
Installation notes
The Fostech Echo AR II is a drop-in trigger, requiring no permanent modifications to your lower receiver. Installation typically involves removing the existing trigger group and replacing it with the Echo AR II assembly, secured with the included pins. Detailed instructions are provided.
For shooters looking to enhance their AR-15’s capabilities, the Fostech Echo AR II offers a practical solution for increased firing speed and control. Available now at Michigan Gun Shop, this trigger system is a reliable addition to your firearms accessories lineup.
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