Enhance your weapon-mounted lighting setup with the Unity Tactical ModButton Lite LINK USB-C 4.5″ FDE Weapon Light Switch. Engineered for reliability in demanding tactical environments, this low-profile pressure switch delivers precise momentary activation while integrating seamlessly with Unity’s innovative LINK system for future-ready USB-C compatibility.
Key Features
- Momentary-only activation ensures intuitive, on-demand control without accidental constant-on engagement, reducing battery drain and maintaining situational awareness.
- LINK USB-C integration supports Unity’s GASCAP USB-C tailcap, enabling compatibility with SureFire Scout-style lights and paving the way for expanded future capabilities in high-output weapon illumination systems.
- Compact 4.5-inch cable provides flexible routing options while minimizing snag hazards on your rail system.
- Versatile mounting with included Picatinny (M1913) and M-LOK compatible clamps, allowing left or right side positioning for ambidextrous use.
- Durable high-impact polymer construction in Flat Dark Earth (FDE) finish offers lightweight resilience against recoil and environmental stresses.
Technical Specifications
- Weight: 0.8 oz
- Dimensions: 1.3″ x 1.3″ x 0.4″
- Cable Length: 4.5″
- Plug Type: UNITY LINK USB-C
- Activation: Momentary only
- Mounting: MIL-STD M1913 Picatinny and M-LOK compatible
- Material: High-impact polymer
- Color: Flat Dark Earth (FDE)
Why Choose the ModButton Lite LINK?
Traditional weapon light switches often suffer from bulk, unreliable connections, or limited future-proofing. The ModButton Lite addresses these pain points with its streamlined design that mounts flush to your rail, delivers consistent performance under stress, and leverages the LINK ecosystem for seamless upgrades. Whether equipping a duty rifle or precision build, this switch enhances operational efficiency by providing dependable light control without added weight or complexity.
Ideal for law enforcement, military, or serious civilian users seeking professional-grade tactical accessories that prioritize form, function, and compatibility.

