





The AER-04 remote switch from Fenix allows you to control the flashlight on a long weapon quickly, quietly and without changing your grip. The wired design keeps the control precisely where the hand naturally seeks it. The combination of momentary activation and constant illumination provides clear control over the light. The whole unit is designed for real use, not just for storage. A functional solution without unnecessary complexities.
The AER-04 uses two distinct control elements with simple usage logic. A flat pressure switch serves for momentary lighting while pressed, and a classic button turns the light on permanently. This division prevents unintended switching. The control remains clear even in situations where there is no time for thinking.
The switch is designed for flashlights mounted on a long weapon and allows their operation directly from the handguard. The hand remains in working position and the grip does not change. This increases stability and reaction speed. A solution that makes sense with every use.
The flexible cable adapts to the weapon's layout and does not restrict movement. Velcro allows you to place the switch exactly where it suits the ergonomics of a specific setup. Control elements remain in place and do not obstruct view or handling. The whole unit is low-profile and functional.
The end screw part is made of aluminum alloy with a hard surface finish. The durable thread withstands repeated disassembly and subsequent assembly without wear. Sealing protects internal parts from water, moisture, dust and dirt. The switch is built for long-term use in demanding conditions.
The AER-04 is designed for specific Fenix flashlight models and works with them without modifications. The connection is firm and stable, without play or switch failures. Proper compatibility ensures full functionality of both lighting modes. You attach it, tighten it and use it.
| Weight | 40 g |
| Material in detail | Cable from flexible polyurethane, T6 aluminum alloy termination with Type‑III anodization |
| Dimensions in detail | Cable length 23cm, connector length 31.5mm × diameter 25.4mm |
| Other specifications | Waterproof according to IP68 standard, pressure switch with a lifespan of 100,000 cycles |
| Parts of delivery | Cable switch, velcro for fastening |