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PISTOL MOUNTED WHITE LIGHT

FOXTROT1X

OPERATORS MANUAL

ELECTRO-OPTICS

Please visit sigsauer.com for Owners Manual downloads.

INTRODUCTION:

The FOXTROT1X™ is a compact yet powerful pistol mounted white light that is 

perfect for concealed carry, home defense and duty use.  The FOXTROT1X™ is 

compatible with any firearm that uses a MIL-STD 1913 rail, as well as many other 

pistols on the market.
The FOXTROT1X™ is covered by the SIG SAUER Electro-Optics Infinite 

Guarantee and Electronics & Tritium Component Limited 5-Year Warranty.

KEY FEATURES:

•  450 Lumens

•  1.5 Hours of Runtime

•  Runs on 1 x CR123A Lithium Battery

•  Compact 6061 Aluminum Housing

•  Ambidextrous Side Activation Switches with Momentary and Latching 

Modes

•  Lockout Mode

•  4-Position Sliding Rail Interface Adapter Inserts For Maximum Adjustment 

Range on the Firearm

CONTENTS:

•  FOXTROT1X™ Tactical White Light

•  CR123A Lithium Battery

•  2 Rail Interface Adapter Inserts

•  E-Clip Removal/Installation Tool

PRODUCT IDENTIFICATION:

A.  Bezel

B.  Cross Bolt

C.  Activation Switch
D.  E-Clip

E.  Rail Mount Keeper

F.  Rail Interface Adapter Insert

IMPORTANT:

Prior to installation, battery change, cleaning or maintenance, follow the firearm 

operator’s manual to ensure the firearm is unloaded and pointed in a safe 

direction.

BATTERY INSTALLATION/CHANGE

Turn the bezel counter-clockwise completely to remove it.  Insert a fresh CR123A 

lithium primary battery into the battery compartment of the flashlight, positive (+) 

end first (Fig. 1).  Replace the bezel and turn it clockwise until fully tightened.

SELECTING THE PROPER RAIL INTERFACE INSERT

The FOXTROT1X comes with 2 sliding rail interface insert pieces.  One is 

marked M1913 and is meant for any MIL-STD 1913 or similar rail.  The other 

insert piece is marked OTHER and is meant for pistols with non-MIL-STD 1913 

rail designs.  To change out the rail interface insert piece, the FOXTROT1X must 

be completely disconnected from the rail.  

1. 

Turn the cross bolt head clockwise with a flathead screwdriver until the 

small E-clip is exposed on the other end of the bolt.  

2.  Use the included E-clip tool (with the word REMOVE face down) to push 

the E-clip off the end of the cross bolt (Fig. 2 & 3), taking care not to lose 

the small E-clip.  

3.  Next, turn the cross bolt head counter-clockwise until the cross bolt can 

be pulled completely out, taking care not to lose the wave spring that is 

on the cross bolt, or the rail mount keeper.  

4.  Test both rail interface insert pieces to determine which one has a recoil 

lug that fits securely into a slot on the firearm rail with the least amount 

of free play.  

5.  Put the correct rail interface insert piece into the slot on top of the light, 

reinsert the cross bolt with wave spring through the rail insert piece and 

thread it clockwise into the rail mount keeper.  

6.  Turn the cross bolt head clockwise completely, to expose the groove on 

the end of the cross bolt.  Use the E-clip tool (with the word INSTALL face 

down) to slide the E-clip onto the groove on the end of the cross bolt (Fig. 

4 & 5).

A

B

C

A

D

E

A

D

F

E

B

C

FIGURE 1.

FIGURE 3.

FIGURE 2.

FIGURE 5.

FIGURE 4.

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