Fenix AER-04 Remote Pressure Switch for Rail-Mounted Tactical Flashlights

Take full control of your rail-mounted flashlight without breaking your shooting grip. The Fenix AER-04 Remote Pressure Switch is a purpose-built tactical accessory designed for fast, intuitive light activation in high-pressure situations. A quick press of the pressure pad delivers momentary activation at the brightest output level, while the dedicated tactical switch locks the light on for constant illumination — all without repositioning your hands.

Built to perform in the field, the AER-04 carries an IP68 rating, making it dustproof and waterproof to depths of 2 meters. Whether you’re running it through rain, mud, or a water crossing, this switch is engineered to keep up. Mounting is simple and flexible — secure it to your rail setup using the included cable ties or the hook-and-loop backer, whichever best suits your configuration.

**Compatible Fenix Flashlight Models:**
HT18, HT30R, PD36R PRO, PD36 TAC, TK16 V2.0, TK20R V2.0, TK20R UE, TK22 TAC, TK22 UE, and TK30.

⚠️ **Compatibility Note:** The AER-04 is **not compatible** with the PD36R.

**Key Features:**
– Momentary-on and constant-on activation modes
– IP68 rated — dustproof and waterproof to 2 meters
– Includes cable ties and hook-and-loop backer for versatile mounting
– Designed for use with select current Fenix flashlight models

At just $19.95, the Fenix AER-04 is an affordable upgrade that adds serious tactical functionality to your light setup. Order online at Deep Roots Rifle Co for fast shipping nationwide, or stop by our gun store in Eustis, Florida to see it in person. Our knowledgeable staff is always ready to help you find the right accessories for your build.