Home/Accessories/Wide Open Triggers | Designed to Work on AR15 Platforms

Wide Open Triggers | Designed to Work on AR15 Platforms



Designed to be a true drop-in replacement trigger for the AR-15 platform.* The Wide Open Trigger is a hard-reset trigger that has been engineered to last and endure repetitive use.

Superb Reliability, With A Patent-Pending Spring Carrier

Easy To Install Plug-n-Play Solution

Most Abrasion-Resistant Metal In The World, HardoxTM Steel

The WOT Trigger comes preinstalled in the F1 Receiver Set The WOT trigger can be purchased separately here:



Product overview on Wide Open Trigger | wot trigger

wot trigger HARDOXTM STEEL

The WOT has a patent-pending, spring-locking bar that makes the trigger unique. The trigger’s hammer is reinforced with Hardox steel, which due to its toughness, copes with shocks, jolts, bangs, nicks, and jabs day after day. This material allows the WOT to take the constant beating of the bolt carrier group (BCG) as it cycles back and forth in an AR-15 rifle or pistol.

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The WOT is not capable of being a fully automatic trigger because the hammer is released by the locking bar and hits the firing pin. The firing pin then activates the primer on the brass casing which allows only one bullet to make its way out of the rifle with each pull of the trigger.

How WOT Trigger Works

The WOT trigger, also known as the throttle position sensor (TPS), is responsible for monitoring the position of the throttle plate in the engine. When the throttle is fully open, indicating wide-open throttle, the WOT trigger sends signals to the engine control unit (ECU) to adjust fuel injection and ignition timing accordingly.

Importance of WOT Trigger in Engines

The information provided by the WOT trigger allows the ECU to optimize engine performance during acceleration and high-speed driving. It ensures that the engine receives the correct amount of fuel and air mixture for efficient combustion, resulting in improved power delivery and fuel economy.

Common Issues with WOT Trigger

Despite its importance, the WOT-trigger is susceptible to various issues that can affect engine performance. Recognizing the symptoms of a faulty WOT-trigger and understanding its underlying causes is crucial for timely diagnosis and repair.

Symptoms of a Faulty WOT Trigger

  • Erratic engine performance
  • Stalling or hesitation during acceleration
  • Surging or uneven idling
  • Illumination of the check engine light

Causes of WOT Trigger Malfunction

  • Wear and tear due to prolonged use
  • Contamination from dirt or debris
  • Electrical faults or wiring issues



The wide-open throttle trigger (WOT) is a two-stage, hard-reset trigger that allows the user the ability to shoot faster, while still allowing only one single shot per trigger pull. The trigger is designed to shorten the length and time a trigger needs to reset itself, by using the elastic energy of the patent-pending spring carrier. When compressed, the spring carrier forces the trigger into a neutral or reset position.

Wide Open Triggers

wide open throttle trigger

The Wide Open Trigger (WOT) is a two-stage, hard-reset trigger that allows the user the ability to shoot faster, while still allowing only one single shot


The trigger is designed to fit AR-15 platforms with a full-auto bolt carrier group.* The khttps://ammodepotid.com/product/binary trigger WOT is easily installed without the help of a professional gunsmith (although, we always recommend a gunsmith to inspect your firearm). Shooters can now experience the thrill of shooting a hard-reset trigger in their AR-15. The WOT Trigger comes preinstalled in the F1 Receiver Set The WOT trigger can be purchased separately here: https://www.wotar15.com/

Diagnostic Methods for WOT Trigger Problems

Diagnosing WOT-trigger problems requires a systematic approach to identify the root cause accurately. Utilizing diagnostic tools and performing visual inspections can help pinpoint the issue effectively.

Using Diagnostic Tools

  • OBD-II scanner for retrieving fault codes
  • Multimeter for testing voltage and continuity
  • Oscilloscope for analyzing signal waveform

Visual Inspection

  • Check for signs of physical damage or corrosion on the WOT-trigger and its wiring harness.
  • Ensure proper connection and alignment of the throttle position sensor.

Testing WOT-Trigger’s Voltage

  • Use a multimeter to measure the voltage output of the WOT-trigger at various throttle positions.
  • Compare the readings to the manufacturer’s specifications to determine if the sensor is functioning correctly.

Steps to Replace a Faulty WOT-Trigger

In cases where the WOT-trigger is determined to be faulty, replacing it is necessary to restore proper engine performance. Following proper procedures and safety precautions is essential during the replacement process.

Safety Precautions

  • Disconnect the battery to prevent electrical hazards.
  • Wear protective gear, such as gloves and safety glasses, when working with automotive components.

Tools Required

  • Socket wrench set
  • Screwdrivers
  • New WOT trigger sensor

Step-by-Step Replacement Process

  1. Locate the WOT-trigger sensor attached to the throttle body.
  2. Disconnect the electrical connector and remove the mounting bolts securing the sensor in place.
  3. Carefully remove the old sensor and install the new one in its place.
  4. Reattach the electrical connector and mounting bolts, ensuring proper alignment.
  5. Double-check all connections and secure the sensor in place.
  6. Reconnect the battery and start the engine to verify proper operation.

Tips for Maintaining a Healthy WOT-Trigger

Regular maintenance and care can help extend the lifespan of the WOT-trigger and prevent potential issues down the road. Implementing these tips can ensure optimal performance and reliability.

Regular Inspection

  • Periodically inspect the WOT trigger for signs of wear or damage.
  • Clean any dirt or debris accumulated on the sensor and throttle body.

Cleaning and Lubrication

  • Use electrical contact cleaner to remove contaminants from the sensor’s surface.
  • Apply a small amount of dielectric grease to the electrical connector to prevent corrosion.

Monitoring Engine Performance

  • Pay attention to any changes in engine behavior or performance.
  • Address any issues promptly to prevent further damage to the WOT trigger or other engine components.
To install the wide open trigger for sale:
  1. Remove the upper receiver from the lower receiver.
  2. Gently allow the hammer to go forward after depressing the trigger.
  3. Remove the grip from the lower receiver, along with the safety and the safety pin.
  4. Remove the trigger, hammer, and springs.
  5. Replace with the WOT (it will have a snug fit).
  6. Anti-walk pins are included and should be installed on the trigger to avoid malfunctions.
  7. Reinstall the safety pin, spring, and grip.
  8. Reinstall the upper receiver.

Wide Open Triggers


The WOT-trigger plays a crucial role in engine performance, ensuring optimal fuel delivery and ignition timing during acceleration and high-speed driving. By understanding its operation, recognizing common issues, and implementing proper maintenance practices, vehicle owners can ensure smooth and efficient engine operation.

FAQs (Frequently Asked Questions)

  1. How do I know if my WOT-trigger is malfunctioning?
    • Look out for symptoms such as erratic engine performance, stalling during acceleration, or the illumination of the check engine light.
  2. Can I replace the WOT-trigger sensor myself?
    • While it’s possible for experienced DIYers, it’s recommended to consult a professional mechanic for proper diagnosis and replacement.
  3. Is cleaning the WOT-trigger necessary?
    • Yes, periodic cleaning can help prevent contamination and ensure accurate sensor readings.
  4. What are the consequences of ignoring WOT-trigger issues?
    • Ignoring WOT-trigger problems can lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components.
  5. How often should I inspect the WOT-trigger?
    • It’s advisable to include WOT-trigger inspection as part of routine vehicle maintenance, preferably during scheduled tune-ups or inspections.
wide open trigger price

Now sold at $260 at ammodepotid.com

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