B.O.S. Lock Quick Start Guide
Always ensure that the firearm is cleared and rendered safe
Installation procedure
Step 1: Verify the Firearm is Unloaded
- Remove the magazine.
- Lock the slide open.
- Visually and physically inspect the chamber to confirm the firearm is unloaded.
Step 2: Clear Existing Fingerprints (If Needed)
If fingerprints are already stored on the Fusion:
- Locate the CLR (Clear) button on the rear of the device.
- Press and hold the CLR button.
- Watch the LED indicator:
- Green flashes indicate how many fingerprints remain.
- Repeat the process until the LED flashes yellow, confirming all fingerprints have been removed.
Step 3: Familiarize Yourself with Light & Laser Controls
Before programming fingerprints, decide which light and laser settings you want tied to each fingerprint.
Toggle Paddle A (Left Side) – Light Control
- Double tap: Light On (Low)
- Single tap: Cycle Low → Medium → High
- Press and hold: Strobe Mode
Toggle Paddle B (Right Side) – Laser Control
- Double tap: Laser On/Off
Each fingerprint can be programmed to recall a specific light and laser configuration when unlocking.
Step 4: Program Your Fingerprints
- Press the PRG (Program) button once.
- The LED will turn blue.
- Repeatedly tap your finger on the sensor from slightly different angles.
- Continue until the locking arm automatically opens.
Repeat for each finger you wish to program.
Recommended setup:
- Dominant index finger: Medium Light + Laser On (factory setting)
- Dominant middle finger: Light Off + Laser Off
- Support-hand finger: High Light + Laser Off
Step 5: Assign Light & Laser Preferences to Each Fingerprint
- Set the device to the desired light and laser configuration.
- Press and hold both toggle paddles until the LED flashes white.
- Release both paddles.
- Press Toggle Paddle A.
- The LED will flash cyan.
- Touch the fingerprint you want to assign.
- A green flash confirms the new setting has been saved.
Repeat for any additional fingerprints.
Step 6: Mount Fusion to Your Firearm
- Leave the locking arm open.
- Slide Fusion onto the firearm’s accessory rail.
- Align the mounting hole with the desired rail slot.
- Insert the supplied mounting bolt.
- Tighten using the proprietary driver until secure.
Only moderate hand pressure is required.
Step 7: Install the Stabilizing Set Screw
- Locate the brass-tipped set screw.
- Insert it into the rear-most compatible slot on the arm side of the Fusion.
- Tighten using the larger Allen wrench.
Purpose:
- Adds a second contact point with the frame.
- Reduces movement during recoil.
- Helps maintain laser alignment.
This screw is for stabilization only and is not the primary security attachment.
Step 8: Adjust Laser Zero (Optional)
Windage (Left/Right)
- Side adjustment screw
- Clockwise: Moves laser right
- Counterclockwise: Moves laser left
Elevation (Up/Down)
- Bottom adjustment screw
- Clockwise: Moves laser down
- Counterclockwise: Moves laser up
Use the smaller Allen wrench included with the Fusion.
Step 9: Test Your Fingerprint Profiles
Verify each programmed fingerprint performs as intended. Below shows the programmed sample actions that were performed in our quick start video:
- Index Finger: Unlock + Medium Light + Laser On
- Middle Finger: Unlock Only
- Support-Hand Finger: Unlock + High Light
You can switch instantly between programmed modes simply by touching a different registered fingerprint.
Step 10: Manual Light & Laser Operation
Light Controls
- Double tap Toggle A: Light On (Low)
- Single tap: Low → Medium → High
- Double tap again: Light Off
Laser Controls
- Double tap Toggle B: Laser On
- Double tap Toggle B again: Laser Off
The double-tap cadence is intentional to help prevent accidental activation.
Installation Complete
Your Fusion is now mounted, programmed, and ready for use. Perform several lock/unlock cycles and confirm all fingerprints, light modes, and laser settings function as expected before carrying or storing the firearm.
