The FosTech Echo AR-II Drop-In Trigger is a trigger module designed for the AR-15 platform that provides three selectable settings: Safe, Semi-Automatic, and Echo. In Echo mode the mechanism fires on both trigger pull and trigger release, while Semi-Automatic mode provides a single-shot pull. The unit is a drop-in style trigger intended for installation in AR-15 receivers.
Key Specifications
- Designed to fit the AR-15 platform with AR-15 compatibility.
- Selectable operating modes include Safe, Semi-Automatic, and Echo.
- Drop-in design with No proprietary bolt carrier required (marketing name includes this phrase).
- Patented design noted as US 8,820,211 B1 in provided product materials.
- Includes technology licensed under U.S. patents 9,952,012 and 9,952,013 per supplied data.
- Licensed technology attribution listed as Franklin Armory and HIPERFIRE in supplied materials.
- Trigger feel described in source material as a light, clean, and crisp pull in Semi-Automatic mode.
- Source material describes reliable function in Echo mode.
- Frame/material listed in product attributes as Assorted.
- Condition indicated in product attributes as New.
The Echo AR-II combines patented actuation features and selectable modes for users who require an alternate trigger function on an AR-15 platform. Its drop-in form factor and described pull characteristics make it an option for shooters seeking a distinctive, mechanically different trigger experience while preserving standard AR-15 compatibility as indicated in the supplied product data.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.
