Installing a Franklin Armory binary trigger in your AR-15 can significantly alter its functionality, offering a unique shooting experience. However, this isn't a beginner's modification. This guide provides a detailed walkthrough, emphasizing safety and precision throughout the installation process. Disclaimer: Improper installation can damage your firearm and potentially lead to injury. Proceed with caution and at your own risk. This guide is for informational purposes only and does not constitute professional gunsmithing advice.
Understanding the Franklin Armory Binary Trigger
Before diving into the installation, let's understand what makes a binary trigger different. Unlike standard triggers that fire only with a single pull, a binary trigger fires once on the initial pull and again on the release. This rapid firing capability requires a high degree of control and precision. Franklin Armory is a leading manufacturer known for its high-quality binary triggers, but proper installation is crucial to ensure safe and reliable operation.
Tools and Materials Required
Before you begin, gather the necessary tools and materials. This ensures a smooth and efficient installation process. You'll need:
- Franklin Armory Binary Trigger Kit: Ensure you have the correct kit for your specific AR-15 lower receiver.
- AR-15 Lower Receiver: Clean and free from debris.
- Punch Set: Includes a roll pin punch and a standard punch.
- Hammer: A standard hammer will suffice.
- Torque Wrench: Essential for tightening screws to the manufacturer's specifications.
- Screwdrivers: Phillips and flathead, depending on your lower receiver and trigger components.
- Safety Glasses: Absolutely crucial for eye protection.
- Firearm Cleaning Kit: For pre- and post-installation cleaning.
Step-by-Step Installation Guide
This detailed guide will walk you through each step of the Franklin Armory binary trigger installation:
Step 1: Disassemble the Lower Receiver
Carefully disassemble your AR-15 lower receiver. This includes removing the grip, trigger guard, and any other components that might interfere with the installation. Refer to your AR-15's owner's manual if you are unsure about any steps. Always ensure the firearm is unloaded and clear of ammunition.
Step 2: Remove the Existing Trigger Components
Remove the existing trigger and hammer pin(s). Use the appropriate punch to carefully drive out the pins, making sure to keep track of their orientation. Place the removed parts in a safe, organized manner to prevent loss or damage.
Step 3: Install the Franklin Armory Trigger Components
Carefully examine the Franklin Armory binary trigger components. Follow the manufacturer’s instructions included in your kit. Typically, you'll install the new trigger and hammer in the lower receiver, aligning them accurately with their respective channels.
Step 4: Insert the Hammer and Trigger Pins
Insert the hammer and trigger pins, ensuring they are properly aligned. Gently tap them into place using the punch and hammer. Avoid excessive force to prevent damage to the pins or receiver.
Step 5: Reassemble the Lower Receiver
Once all trigger components are installed, reassemble your lower receiver. This includes installing the trigger guard, grip, and other components removed earlier.
Step 6: Function Check
With the firearm unloaded, perform a thorough function check to ensure smooth operation. Dry-fire the weapon several times to confirm proper trigger engagement and release. It’s highly recommended you seek professional assistance for any issues.
Post-Installation Considerations
- Proper Lubrication: Apply a high-quality firearm lubricant to all moving parts of the trigger mechanism.
- Testing: Once you are comfortable with the dry-fire tests, consider taking the firearm to a range and test firing it with ammunition. Start by firing slowly to get a feel for the binary trigger's unique operation. Always follow safe firearm handling practices.
- Maintenance: Regularly inspect and clean your binary trigger mechanism to ensure it remains functional and reliable.
This guide provides a general overview. Always consult the manufacturer’s instructions specific to your Franklin Armory binary trigger model for the most accurate and safe installation procedures. Remember, safety is paramount. If you are unsure about any step, consult a qualified gunsmith.
