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FosTech Echo Trigger AR-II Binary Trigger for AR-15

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$515.95 $469.95
(You save $46.00)
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FosTech Echo Trigger - AR-II Drop-In AR-15 Binary Trigger

The FosTech Echo AR-II Trigger is an advanced safety echo trigger. It has three different fire settings: Safe, Semi-Automatic, and a mode that fires one round when the shooter depresses the trigger. The patented technology set this apart from other triggers in its class. Approved by ATF with safety being paramount to all else, it's hard not to love what they've done here! If the target moves, the shooter can move the selector to the safe position and a second-round will not fire upon release.

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

Specs of FosTech Echo Trigger - AR-II Drop-In AR-15 Binary Trigger:

Color: Stainless Steel
Finish: Metallic
Fabric/Material: Stainless Steel Alloy
Trigger Shape: Traditional Curved
Trigger Pull Weight: 4.5 to 5 lbs
For Gun Model: AR-15
Gun Type: Rifle
Weight: 4 ounces

Features of FosTech Echo Trigger - AR-II Drop-In AR-15 Binary Trigger:

  • Patented Design that garnered ATF Approval (Patent # US 8,820,211 B1)
  • Lightweight, clean, and smooth pull in Semi-Automatic mode
  • Jammed full of cutting edge tech that includes technology licensed through HiperFire along with their own FosTech patented tech
  • Consistent and reliable Function
  • Versatility with different carrier groups, no specific one needed with The Echo AR II 6
  • Drop-in Cassette design
  • Patented technology licensed through Franklin Armory inside the Echo AR-II Trigger, included U.S. Pat. Nos. 9,952,012 and 9,952,013.

IMPORTANT: Not for civilian sales in CA, DC, IA, NJ, NY, HI, RI, FL, MD, CT, or WA. If you purchase this echo trigger to a shipping address located in one of these states, your purchase will be refunded and you will be charged a small restocking fee.

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Precision Outdoors' Standard Shipping is a low $4.95 flat rate. We also now offer a $3.95 Lightweight Shipping option for some of our smaller, lighweight orders. The Lightweight Shipping option will appear automatically on orders that qualify. Both our Standard Shipping and Lightweight Shipping, ship via our choice of either UPS, USPS or FedEx Ground.

Normal shipping times for all orders are 3-5 business days.

Please note that our order processing times are currently 2-3 business days. Precision Outdoors has always put our customers first. Before COVID-19, this meant emphasizing speed by shipping out all orders within 24 hours. Now due to the impact of COVID-19, that emphasis has been shifted towards safety & cleanliness. Our order processing times have been increased to 2-3 days in order to focus on employee safety, and to ensure that each package has been properly inspected & sanitized before being sent out to our customers.

A big thank you to all of our customers, we have greatly enjoyed the pleasure of serving you.

-Precision Outdoors Team


Your satisfaction is important to Precision Outdoors. If you need to return a product, we will make every reasonable effort to satisfy you. We will accept unwanted or defective product in unaltered condition within 30 days for refund, credit, or exchange.

All refunds are accepted hassle-free, with no restocking fees. You must contact us for a return authorization number, which we will give to you prior to returning a product. After 30 days, defective items need to be returned directly to the manufacturer.

You should expect to receive your refund within 3-5 business days of when the returned item arrives back to our warehouse. This is the time it takes our bank to fully process the refund request

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