Weapon flashlight mount Nitecore GM02 for 25.4 mm tubes

The Nitecore GM02 is a weapon flashlight mount engineered to hold flashlights with 25.4 mm (1-inch) diameter bodies. It provides a secure clamp around the flashlight and a stable interface to firearm rails or round tubes, allowing consistent alignment between the beam and the bore. The GM02 is intended for tactical and hunting applications where a compact, repeatable light attachment is required for rifles and shotguns.

Advantages

The mount offers a robust clamping mechanism that keeps the flashlight firmly in place under recoil and during movement. Its compact profile reduces interference with sights and handling while preserving access to the flashlight bezel and tailcap controls. Constructed to resist loosening in field conditions, the GM02 balances low weight with mechanical strength for dependable performance.

Suitable for

• Attaching a handheld flashlight to a rifle or shotgun barrel or rail with a 25.4 mm tube
• Tactical and law enforcement duty use where quick, repeatable light alignment is needed
• Hunting scenarios requiring hands-free illumination while maintaining weapon handling
• Range training where a mounted light is used for target acquisition and low-light drills

Key specifications

• Compatible flashlight body diameter: 25.4 mm (1 inch)
• Mount type: Clamp-style weapon/rail attachment
• Designed for use with rifles and shotguns
• Material characteristics: corrosion-resistant metal construction for durability
• Compact, low-profile design to minimize added bulk

How to use

Install the GM02 by opening the clamp, placing the flashlight body into the circular holder, and tightening the clamping mechanism until the flashlight is held securely without deforming the tube. Position the mount on the desired rail section or tube so the beam aligns with the barrel. Verify retained alignment by cycling the action and confirming the lamp position after a few repetitions. Make final adjustments as needed to ensure unobstructed access to the light’s bezel and control switch.

Usage recommendations

Check compatibility with the flashlight diameter before installation and periodically re-check fasteners after heavy use or exposure to vibration. Use torque appropriate to the mount’s hardware to avoid over-tightening. For safe operation, confirm that the mounted light does not interfere with sighting systems or muzzle devices and follow local laws and range rules regarding mounted weapon lights.