ADE HELIOS (RD3-031) Closed Emitter Red Dot Sight

Product Title

ADE HELIOS RD3-031 Closed Emitter Red Dot Sight – 6 Reticle Patterns, Motion Activated, Rechargeable LIR2032 Battery, Magnetic USB Charging, RMR Footprint Compatible

Product Overview

The ADE HELIOS (RD3-031) is a next-generation closed emitter red dot sight engineered for durability, reliability, and fast target acquisition. Featuring a fully enclosed emitter design, six selectable reticle patterns, Motion Activated Technology, and a patented structural side-clamp mounting system, the HELIOS delivers dependable performance in adverse weather, dusty environments, and high-recoil applications.

Unlike traditional optics that rely solely on mounting screws, the HELIOS utilizes ADE's Structural Mounting System™ to transfer recoil forces through the mounting interface, improving durability and long-term zero retention.

The optic includes a rechargeable LIR2032 battery with magnetic USB charging capability, allowing convenient recharging without removing the optic from the slide.

Key Features

Fully Enclosed Emitter Design

The closed emitter housing protects the LED emitter from rain, dust, mud, lint, and debris, ensuring a clear aiming point even in challenging conditions.

6 Selectable Reticle Patterns

Choose the reticle that best fits your shooting style:

• 2 MOA Dot
• 50 MOA Circle
• Circle-Dot Combinations
• Multiple precision and rapid-acquisition configurations

Switch between six reticle patterns with the push of a button.

Motion Activated Technology

After 2 minutes of inactivity, the optic automatically enters sleep mode to conserve battery life. Any movement instantly restores the reticle at the previous brightness setting.

Rechargeable Battery System

Includes a rechargeable LIR2032 battery and magnetic USB charging cable.

• Recharge directly through the optic
• Approximately 500 recharge cycles
• No need to remove the optic for charging
• Compatible with standard CR2032 batteries if preferred (charging function disabled)

Magnetic USB Charging

The integrated magnetic charging system allows simple charging without removing the battery.

• Red LED indicates charging
• Up to 8-hour charging time
• Convenient field charging capability

ADE Structural Mounting System™

Unlike conventional optics that place recoil forces directly on mounting screws, the HELIOS uses a patented side-clamp engagement system that transfers recoil forces through the mounting interface itself.

Benefits include:

• Enhanced recoil resistance
• Improved long-term durability
• Reduced screw stress
• Better zero retention

RMR Footprint Compatible

Compatible with mounting platforms designed for the RMR footprint pattern, including:

• Trijicon RMR
• Trijicon SRO
• Holosun 407C
• Holosun 507C
• Holosun 508T
• Other RMR-pattern mounting systems and adapter plates

Lightweight Aluminum Construction

Built from full metal construction while maintaining an ultra-lightweight design.

• Weight: 1.7 oz (48 g)
• Compact footprint
• Optimized for slide-mounted applications

Technical Specifications

What's Included

• ADE HELIOS RD3-031 Optic
• Rechargeable LIR2032 Battery
• Magnetic USB Charging Cable
• T10 Installation Wrench
• Adjustment Tool
• Mounting Hardware
• User Manual